CVE-2026-0849 (GCVE-0-2026-0849)

Vulnerability from cvelistv5 – Published: 2026-03-14 21:05 – Updated: 2026-03-17 15:05
VLAI
Title
crypto: ATAES132A response length allows stack buffer overflow
Summary
Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution.
Severity
3.8 (Low)
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 15:04 UTC
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
zephyr CNA under the mitre root
CNA scorecard B 77/100 over 175 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
zephyrproject-rtos Zephyr Affected: * , ≤ 4.3 (git)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0849",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-17T15:04:55.949281Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-17T15:05:37.922Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "Zephyr",
          "product": "Zephyr",
          "repo": "https://github.com/zephyrproject-rtos/zephyr",
          "vendor": "zephyrproject-rtos",
          "versions": [
            {
              "lessThanOrEqual": "4.3",
              "status": "affected",
              "version": "*",
              "versionType": "git"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "crypto: ATAES132A response length allows stack buffer overflow"
            }
          ],
          "value": "Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-14T21:05:36.954Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
      },
      "references": [
        {
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "crypto: ATAES132A response length allows stack buffer overflow",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-0849",
    "datePublished": "2026-03-14T21:05:36.954Z",
    "dateReserved": "2026-01-11T06:32:24.529Z",
    "dateUpdated": "2026-03-17T15:05:37.922Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-0849",
      "date": "2026-10-14",
      "epss": "0.00244",
      "percentile": "0.14548"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "packageName": "Zephyr",
                "product": "Zephyr",
                "repo": "https://github.com/zephyrproject-rtos/zephyr",
                "vendor": "zephyrproject-rtos",
                "versions": [
                  {
                    "lessThanOrEqual": "4.3",
                    "status": "affected",
                    "version": "*",
                    "versionType": "git"
                  }
                ]
              }
            ],
            "source": "vulnerabilities@zephyrproject.org"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:zephyrproject:zephyr:4.3.0:-:*:*:*:*:*:*",
                    "matchCriteriaId": "EA3FCE94-ECC0-421B-B359-8AC2F4FF9589",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "A9F6045A-6985-43A5-A0C3-19CF4E3D0ACF",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "F46D01CA-AD60-4A2F-91E0-44BDD4C6EDDA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "0A85B354-1551-4500-8775-CEFEE279579D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution."
          },
          {
            "lang": "es",
            "value": "Respuestas ATAES132A malformadas con un campo de longitud sobredimensionado desbordan un b\u00fafer de pila de 52 bytes en el controlador criptogr\u00e1fico de Zephyr, permitiendo a un dispositivo comprometido o a un atacante del bus corromper la memoria del kernel y potencialmente secuestrar la ejecuci\u00f3n."
          }
        ],
        "id": "CVE-2026-0849",
        "lastModified": "2026-06-17T10:11:29.810",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "PHYSICAL",
                "availabilityImpact": "LOW",
                "baseScore": 3.8,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 0.4,
              "impactScore": 3.4,
              "source": "vulnerabilities@zephyrproject.org",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "PHYSICAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.8,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-0849",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-17T15:04:55.949281Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-03-16T14:18:07.270",
        "references": [
          {
            "source": "vulnerabilities@zephyrproject.org",
            "tags": [
              "Exploit",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "tags": [
              "Exploit",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
          }
        ],
        "sourceIdentifier": "vulnerabilities@zephyrproject.org",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-120"
              }
            ],
            "source": "vulnerabilities@zephyrproject.org",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T08:13:16+00:00",
      "cve": "CVE-2026-0849",
      "id": "CVE-2026-0849",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "crypto: ATAES132A response length allows stack buffer overflow",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0849.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-0849",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-03-17T15:04:55.949281Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-03-17T15:05:26.565Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "exploit"
                ],
                "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "packageName": "Zephyr",
              "product": "Zephyr",
              "repo": "https://github.com/zephyrproject-rtos/zephyr",
              "vendor": "zephyrproject-rtos",
              "versions": [
                {
                  "lessThanOrEqual": "4.3",
                  "status": "affected",
                  "version": "*",
                  "versionType": "git"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "crypto: ATAES132A response length allows stack buffer overflow"
                }
              ],
              "value": "Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "PHYSICAL",
                "availabilityImpact": "LOW",
                "baseScore": 3.8,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-120",
                  "description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-03-14T21:05:36.954Z",
            "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
            "shortName": "zephyr"
          },
          "references": [
            {
              "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "crypto: ATAES132A response length allows stack buffer overflow",
          "x_generator": {
            "engine": "Vulnogram 0.1.0-dev"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "assignerShortName": "zephyr",
        "cveId": "CVE-2026-0849",
        "datePublished": "2026-03-14T21:05:36.954Z",
        "dateReserved": "2026-01-11T06:32:24.529Z",
        "dateUpdated": "2026-03-17T15:05:37.922Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.