Vulnerability-Lookup

ubuntu-cve-2026-2781

Vulnerability from osv_ubuntu

Published

2026-02-24 14:16

Modified

2026-06-24 08:58

Summary

Details

Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-2781	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-2781	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://ubuntu.com/security/notices/USN-8071-1	ADVISORY
	https://ubuntu.com/security/notices/USN-8071-2	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm13?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.14.04.5+esm13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.15.1-1ubuntu1",
        "2:3.15.2-1",
        "2:3.15.3-1",
        "2:3.15.3.1-1",
        "2:3.15.3.1-1.1",
        "2:3.15.3.1-1.1ubuntu1",
        "2:3.15.4-1ubuntu3",
        "2:3.15.4-1ubuntu4",
        "2:3.15.4-1ubuntu5",
        "2:3.15.4-1ubuntu6",
        "2:3.15.4-1ubuntu7",
        "2:3.15.4-1ubuntu7.1",
        "2:3.17-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.2",
        "2:3.17.4-0ubuntu0.14.04.1",
        "2:3.19.2-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.2",
        "2:3.21-0ubuntu0.14.04.1",
        "2:3.21-0ubuntu0.14.04.2",
        "2:3.23-0ubuntu0.14.04.1",
        "2:3.26.2-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.1",
        "2:3.28.4-0ubuntu0.14.04.2",
        "2:3.28.4-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.4",
        "2:3.28.4-0ubuntu0.14.04.5",
        "2:3.28.4-0ubuntu0.14.04.5+esm1",
        "2:3.28.4-0ubuntu0.14.04.5+esm2",
        "2:3.28.4-0ubuntu0.14.04.5+esm3",
        "2:3.28.4-0ubuntu0.14.04.5+esm4",
        "2:3.28.4-0ubuntu0.14.04.5+esm5",
        "2:3.28.4-0ubuntu0.14.04.5+esm6",
        "2:3.28.4-0ubuntu0.14.04.5+esm7",
        "2:3.28.4-0ubuntu0.14.04.5+esm8",
        "2:3.28.4-0ubuntu0.14.04.5+esm9",
        "2:3.28.4-0ubuntu0.14.04.5+esm10",
        "2:3.28.4-0ubuntu0.14.04.5+esm11",
        "2:3.28.4-0ubuntu0.14.04.5+esm12"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.14+esm5?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.14+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.19.2-1ubuntu1",
        "2:3.19.2.1-0ubuntu1",
        "2:3.21-1ubuntu2",
        "2:3.21-1ubuntu3",
        "2:3.21-1ubuntu4",
        "2:3.23-0ubuntu0.16.04.1",
        "2:3.26.2-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.1",
        "2:3.28.4-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.3",
        "2:3.28.4-0ubuntu0.16.04.4",
        "2:3.28.4-0ubuntu0.16.04.5",
        "2:3.28.4-0ubuntu0.16.04.6",
        "2:3.28.4-0ubuntu0.16.04.8",
        "2:3.28.4-0ubuntu0.16.04.9",
        "2:3.28.4-0ubuntu0.16.04.10",
        "2:3.28.4-0ubuntu0.16.04.11",
        "2:3.28.4-0ubuntu0.16.04.12",
        "2:3.28.4-0ubuntu0.16.04.13",
        "2:3.28.4-0ubuntu0.16.04.14",
        "2:3.28.4-0ubuntu0.16.04.14+esm1",
        "2:3.28.4-0ubuntu0.16.04.14+esm2",
        "2:3.28.4-0ubuntu0.16.04.14+esm3",
        "2:3.28.4-0ubuntu0.16.04.14+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.35-2ubuntu2.16+esm1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.16+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.16+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.35-2ubuntu2.16+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.32-1ubuntu3",
        "2:3.34-1ubuntu1",
        "2:3.35-2ubuntu2",
        "2:3.35-2ubuntu2.1",
        "2:3.35-2ubuntu2.2",
        "2:3.35-2ubuntu2.3",
        "2:3.35-2ubuntu2.5",
        "2:3.35-2ubuntu2.6",
        "2:3.35-2ubuntu2.7",
        "2:3.35-2ubuntu2.8",
        "2:3.35-2ubuntu2.9",
        "2:3.35-2ubuntu2.11",
        "2:3.35-2ubuntu2.12",
        "2:3.35-2ubuntu2.13",
        "2:3.35-2ubuntu2.14",
        "2:3.35-2ubuntu2.15",
        "2:3.35-2ubuntu2.16"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-0ubuntu0.20.04.2+esm1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-0ubuntu0.20.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.20.04.2+esm1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-0ubuntu0.20.04.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.45-1ubuntu2",
        "2:3.47-1ubuntu1",
        "2:3.47-1ubuntu2",
        "2:3.48-1ubuntu1",
        "2:3.49.1-1ubuntu1",
        "2:3.49.1-1ubuntu1.1",
        "2:3.49.1-1ubuntu1.2",
        "2:3.49.1-1ubuntu1.4",
        "2:3.49.1-1ubuntu1.5",
        "2:3.49.1-1ubuntu1.6",
        "2:3.49.1-1ubuntu1.7",
        "2:3.49.1-1ubuntu1.8",
        "2:3.49.1-1ubuntu1.9",
        "2:3.98-0ubuntu0.20.04.1",
        "2:3.98-0ubuntu0.20.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-0ubuntu0.22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-0ubuntu0.22.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.68-1ubuntu1",
        "2:3.68-1ubuntu2",
        "2:3.68.2-0ubuntu1",
        "2:3.68.2-0ubuntu1.1",
        "2:3.68.2-0ubuntu1.2",
        "2:3.98-0ubuntu0.22.04.1",
        "2:3.98-0ubuntu0.22.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "thunderbird",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:140.7.1+build1-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:91.1.2+build1-0ubuntu1",
        "1:91.3.0+build2-0ubuntu1",
        "1:91.3.1+build1-0ubuntu1",
        "1:91.3.2+build1-0ubuntu1",
        "1:91.4.0+build1.1-0ubuntu1",
        "1:91.4.0+build2-0ubuntu1",
        "1:91.5.0+build1-0ubuntu1",
        "1:91.5.1+build1-0ubuntu1",
        "1:91.6.1+build1-0ubuntu1",
        "1:91.7.0+build1-0ubuntu1",
        "1:91.7.0+build2-0ubuntu1",
        "1:91.8.0+build2-0ubuntu1",
        "1:91.9.1+build1-0ubuntu0.22.04.1",
        "1:91.11.0+build2-0ubuntu0.22.04.1",
        "1:102.2.2+build1-0ubuntu0.22.04.1",
        "1:102.4.2+build2-0ubuntu0.22.04.1",
        "1:102.7.1+build2-0ubuntu0.22.04.1",
        "1:102.8.0+build2-0ubuntu0.22.04.1",
        "1:102.9.0+build1-0ubuntu0.22.04.1",
        "1:102.10.0+build2-0ubuntu0.22.04.1",
        "1:102.11.0+build1-0ubuntu0.22.04.1",
        "1:102.13.0+build1-0ubuntu0.22.04.1",
        "1:102.15.0+build1-0ubuntu0.22.04.1",
        "1:102.15.1+build1-0ubuntu0.22.04.1",
        "1:115.3.1+build1-0ubuntu0.22.04.2",
        "1:115.4.1+build1-0ubuntu0.22.04.1",
        "1:115.5.0+build1-0ubuntu0.22.04.1",
        "1:115.6.0+build2-0ubuntu0.22.04.1",
        "1:115.8.1+build1-0ubuntu0.22.04.1",
        "1:115.9.0+build1-0ubuntu0.22.04.1",
        "1:115.10.1+build1-0ubuntu0.22.04.1",
        "1:115.11.0+build2-0ubuntu0.22.04.1",
        "1:115.12.0+build3-0ubuntu0.22.04.1",
        "1:115.13.0+build5-0ubuntu0.22.04.1",
        "1:115.15.0+build1-0ubuntu0.22.04.1",
        "1:115.16.0+build2-0ubuntu0.22.04.1",
        "1:115.18.0+build1-0ubuntu0.22.04.1",
        "1:128.12.0+build1-0ubuntu0.22.04.1",
        "1:140.7.1+build1-0ubuntu0.22.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-1ubuntu0.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.92-1",
        "2:3.94-1",
        "2:3.95-1",
        "2:3.96.1-1",
        "2:3.98-1",
        "2:3.98-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.114-1ubuntu0.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.114-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.114-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.114-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.108-1ubuntu1",
        "2:3.110-1",
        "2:3.111-1",
        "2:3.112-1",
        "2:3.114-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.120-1ubuntu1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.120-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.120-1ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.120-1ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.114-1",
        "2:3.117-1",
        "2:3.119-1",
        "2:3.120-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.",
  "id": "UBUNTU-CVE-2026-2781",
  "modified": "2026-06-24T08:58:38Z",
  "published": "2026-02-24T14:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-2781"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-2781"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8071-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8071-2"
    }
  ],
  "related": [
    "USN-8071-1",
    "USN-8071-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-2781"
  ]
}

CVE-2026-2781 (GCVE-0-2026-2781)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-21 12:40

Title

Integer overflow in the Libraries component in NSS

Summary

Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

mozilla

References

7 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2009552
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://lists.debian.org/debian-lts-announce/2026…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.35 , ≤ 115.* (rpm) Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Clay Ver Valen

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-2781",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T20:07:29.760093Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-190",
                "description": "CWE-190 Integer Overflow or Wraparound",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T20:07:34.180Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-03-25T16:26:01.616Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00012.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
              "version": "115.35",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "140.*",
              "status": "unaffected",
              "version": "140.8",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "148",
              "versionType": "rpm"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "140.*",
              "status": "unaffected",
              "version": "140.8",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "148",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Clay Ver Valen"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35."
            }
          ],
          "value": "Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T12:40:43.312Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2009552"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-31/"
        }
      ],
      "title": "Integer overflow in the Libraries component in NSS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2026-2781",
    "datePublished": "2026-02-24T13:33:15.551Z",
    "dateReserved": "2026-02-19T15:06:13.592Z",
    "dateUpdated": "2026-04-21T12:40:43.312Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

usn-8071-1

Vulnerability from osv_ubuntu

Published

2026-03-04 12:37

Modified

2026-04-27 14:11

Summary

nss vulnerability

Details

It was discovered that NSS incorrectly handled memory when performing certain GHASH operations. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-8071-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-2781	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-0ubuntu0.22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-0ubuntu0.22.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.68-1ubuntu1",
        "2:3.68-1ubuntu2",
        "2:3.68.2-0ubuntu1",
        "2:3.68.2-0ubuntu1.1",
        "2:3.68.2-0ubuntu1.2",
        "2:3.98-0ubuntu0.22.04.1",
        "2:3.98-0ubuntu0.22.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-1ubuntu0.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.92-1",
        "2:3.94-1",
        "2:3.95-1",
        "2:3.96.1-1",
        "2:3.98-1",
        "2:3.98-1build1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.114-1ubuntu0.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.114-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.114-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.114-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.108-1ubuntu1",
        "2:3.110-1",
        "2:3.111-1",
        "2:3.112-1",
        "2:3.114-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that NSS incorrectly handled memory when performing\ncertain GHASH operations. A remote attacker could use this issue to cause\nNSS to crash, resulting in a denial of service, or possibly execute\narbitrary code.",
  "id": "USN-8071-1",
  "modified": "2026-04-27T14:11:49Z",
  "published": "2026-03-04T12:37:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8071-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-2781"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-2781"
  ]
}

usn-8071-2

Vulnerability from osv_ubuntu

Published

2026-03-05 07:18

Modified

2026-06-25 10:47

Summary

nss vulnerability

Details

USN-8071-1 fixed a vulnerability in nss. This update provides the corresponding fix for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.

Original advisory details:

References

URL

Type

	https://ubuntu.com/security/notices/USN-8071-2	ADVISORY
	https://ubuntu.com/security/CVE-2026-2781	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm13?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.14.04.5+esm13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.15.1-1ubuntu1",
        "2:3.15.2-1",
        "2:3.15.3-1",
        "2:3.15.3.1-1",
        "2:3.15.3.1-1.1",
        "2:3.15.3.1-1.1ubuntu1",
        "2:3.15.4-1ubuntu3",
        "2:3.15.4-1ubuntu4",
        "2:3.15.4-1ubuntu5",
        "2:3.15.4-1ubuntu6",
        "2:3.15.4-1ubuntu7",
        "2:3.15.4-1ubuntu7.1",
        "2:3.17-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.2",
        "2:3.17.4-0ubuntu0.14.04.1",
        "2:3.19.2-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.2",
        "2:3.21-0ubuntu0.14.04.1",
        "2:3.21-0ubuntu0.14.04.2",
        "2:3.23-0ubuntu0.14.04.1",
        "2:3.26.2-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.1",
        "2:3.28.4-0ubuntu0.14.04.2",
        "2:3.28.4-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.4",
        "2:3.28.4-0ubuntu0.14.04.5",
        "2:3.28.4-0ubuntu0.14.04.5+esm1",
        "2:3.28.4-0ubuntu0.14.04.5+esm2",
        "2:3.28.4-0ubuntu0.14.04.5+esm3",
        "2:3.28.4-0ubuntu0.14.04.5+esm4",
        "2:3.28.4-0ubuntu0.14.04.5+esm5",
        "2:3.28.4-0ubuntu0.14.04.5+esm6",
        "2:3.28.4-0ubuntu0.14.04.5+esm7",
        "2:3.28.4-0ubuntu0.14.04.5+esm8",
        "2:3.28.4-0ubuntu0.14.04.5+esm9",
        "2:3.28.4-0ubuntu0.14.04.5+esm10",
        "2:3.28.4-0ubuntu0.14.04.5+esm11",
        "2:3.28.4-0ubuntu0.14.04.5+esm12"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.14+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.14+esm5?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.14+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.19.2-1ubuntu1",
        "2:3.19.2.1-0ubuntu1",
        "2:3.21-1ubuntu2",
        "2:3.21-1ubuntu3",
        "2:3.21-1ubuntu4",
        "2:3.23-0ubuntu0.16.04.1",
        "2:3.26.2-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.1",
        "2:3.28.4-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.3",
        "2:3.28.4-0ubuntu0.16.04.4",
        "2:3.28.4-0ubuntu0.16.04.5",
        "2:3.28.4-0ubuntu0.16.04.6",
        "2:3.28.4-0ubuntu0.16.04.8",
        "2:3.28.4-0ubuntu0.16.04.9",
        "2:3.28.4-0ubuntu0.16.04.10",
        "2:3.28.4-0ubuntu0.16.04.11",
        "2:3.28.4-0ubuntu0.16.04.12",
        "2:3.28.4-0ubuntu0.16.04.13",
        "2:3.28.4-0ubuntu0.16.04.14",
        "2:3.28.4-0ubuntu0.16.04.14+esm1",
        "2:3.28.4-0ubuntu0.16.04.14+esm2",
        "2:3.28.4-0ubuntu0.16.04.14+esm3",
        "2:3.28.4-0ubuntu0.16.04.14+esm4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.35-2ubuntu2.16+esm1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.16+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.16+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.35-2ubuntu2.16+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.32-1ubuntu3",
        "2:3.34-1ubuntu1",
        "2:3.35-2ubuntu2",
        "2:3.35-2ubuntu2.1",
        "2:3.35-2ubuntu2.2",
        "2:3.35-2ubuntu2.3",
        "2:3.35-2ubuntu2.5",
        "2:3.35-2ubuntu2.6",
        "2:3.35-2ubuntu2.7",
        "2:3.35-2ubuntu2.8",
        "2:3.35-2ubuntu2.9",
        "2:3.35-2ubuntu2.11",
        "2:3.35-2ubuntu2.12",
        "2:3.35-2ubuntu2.13",
        "2:3.35-2ubuntu2.14",
        "2:3.35-2ubuntu2.15",
        "2:3.35-2ubuntu2.16"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-2781",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.98-0ubuntu0.20.04.2+esm1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.98-0ubuntu0.20.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.20.04.2+esm1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.98-0ubuntu0.20.04.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.45-1ubuntu2",
        "2:3.47-1ubuntu1",
        "2:3.47-1ubuntu2",
        "2:3.48-1ubuntu1",
        "2:3.49.1-1ubuntu1",
        "2:3.49.1-1ubuntu1.1",
        "2:3.49.1-1ubuntu1.2",
        "2:3.49.1-1ubuntu1.4",
        "2:3.49.1-1ubuntu1.5",
        "2:3.49.1-1ubuntu1.6",
        "2:3.49.1-1ubuntu1.7",
        "2:3.49.1-1ubuntu1.8",
        "2:3.49.1-1ubuntu1.9",
        "2:3.98-0ubuntu0.20.04.1",
        "2:3.98-0ubuntu0.20.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8071-1 fixed a vulnerability in nss. This update provides the\ncorresponding fix for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,\nand Ubuntu 20.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that NSS incorrectly handled memory when performing\n certain GHASH operations. A remote attacker could use this issue to cause\n NSS to crash, resulting in a denial of service, or possibly execute\n arbitrary code.",
  "id": "USN-8071-2",
  "modified": "2026-06-25T10:47:32Z",
  "published": "2026-03-05T07:18:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8071-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-2781"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-2781"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2026-2781

Vulnerability from osv_ubuntu

CVE-2026-2781 (GCVE-0-2026-2781)

usn-8071-1

Vulnerability from osv_ubuntu

usn-8071-2

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature