Vulnerability-Lookup

FKIE_CVE-2025-8028

Vulnerability from fkie_nvd - Published: 2025-07-22 21:15 - Updated: 2026-04-13 15:17

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

References

URL	Tags
security@mozilla.org	https://bugzilla.mozilla.org/show_bug.cgi?id=1971581	Permissions Required
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-56/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-57/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-58/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-59/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-61/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-62/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2025-63/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html

Impacted products

Vendor	Product	Version
mozilla	firefox	*
mozilla	firefox	*
mozilla	firefox	*
mozilla	firefox	*
mozilla	thunderbird	*
mozilla	thunderbird	*
mozilla	thunderbird	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "D697EDEE-5DF4-4FC2-8128-BC9DC23EFFF3",
              "versionEndExcluding": "115.26.0",
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            },
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              "matchCriteriaId": "8684A46E-D70A-4830-8971-A6DCC360F422",
              "versionEndExcluding": "141.0",
              "vulnerable": true
            },
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              "matchCriteriaId": "A621920F-5B71-403D-B8F9-EC22F249CD4C",
              "versionEndExcluding": "128.13.0",
              "versionStartIncluding": "128.0",
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            },
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              "matchCriteriaId": "BB48C2EF-A6AC-4445-9417-1B65D5BC509B",
              "versionEndExcluding": "140.1.0",
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            },
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  "descriptions": [
    {
      "lang": "en",
      "value": "On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1."
    },
    {
      "lang": "es",
      "value": "En arm64, una instrucci\u00f3n WASM `br_table` con muchas entradas podr\u00eda provocar que la etiqueta se alejara demasiado de la instrucci\u00f3n, lo que causar\u00eda truncamiento y un c\u00e1lculo incorrecto de la direcci\u00f3n de la rama. Esta vulnerabilidad afecta a Firefox \u0026lt; 141, Firefox ESR \u0026lt; 115.26, Firefox ESR \u0026lt; 128.13, Firefox ESR \u0026lt; 140.1, Thunderbird \u0026lt; 141, Thunderbird \u0026lt; 128.13 y Thunderbird \u0026lt; 140.1."
    }
  ],
  "id": "CVE-2025-8028",
  "lastModified": "2026-04-13T15:17:08.743",
  "metrics": {
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          "attackVector": "NETWORK",
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          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.9,
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        "type": "Secondary"
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  "published": "2025-07-22T21:15:49.953",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Permissions Required"
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1971581"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-56/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-57/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-58/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-59/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-61/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
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      "url": "https://www.mozilla.org/security/advisories/mfsa2025-62/"
    },
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      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-63/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1332"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

CVE-2025-8028 (GCVE-0-2025-8028)

Vulnerability from cvelistv5 – Published: 2025-07-22 20:49 – Updated: 2026-04-13 14:26

Title

Large branch table could lead to truncated instruction

Summary

Severity ?

9.8 (Critical)


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

CWE

CWE-1332 - Improper Handling of Faults that Lead to Instruction Skips

Assigner

mozilla

References

URL

Tags

	https://bugzilla.mozilla.org/show_bug.cgi?id=1971581
	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://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

Vendor

Product

Version

Mozilla

Firefox

Unaffected: 115.26 , ≤ 115.* (rpm)
Unaffected: 128.13 , ≤ 128.* (rpm)
Unaffected: 140.1 , ≤ 140.* (rpm)
Unaffected: 141 , ≤ * (rpm)

Mozilla

Thunderbird

Unaffected: 128.13 , ≤ 128.* (rpm)
Unaffected: 140.1 , ≤ 140.* (rpm)
Unaffected: 141 , ≤ * (rpm)

Credits

Gary Kwong

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-8028",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-23T14:32:07.056857Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1332",
                "description": "CWE-1332 Improper Handling of Faults that Lead to Instruction Skips",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-04T15:58:24.124Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:07:45.506Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
              "version": "115.26",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "128.*",
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              "version": "128.13",
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            {
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              "version": "140.1",
              "versionType": "rpm"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "141",
              "versionType": "rpm"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
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              "lessThanOrEqual": "128.*",
              "status": "unaffected",
              "version": "128.13",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "140.*",
              "status": "unaffected",
              "version": "140.1",
              "versionType": "rpm"
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            {
              "lessThanOrEqual": "*",
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          ],
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-04-13T14:26:48.394Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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        },
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        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-57/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-58/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-59/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-61/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-62/"
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    "dateReserved": "2025-07-22T10:13:49.236Z",
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}

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

FKIE_CVE-2025-8028

CVE-2025-8028 (GCVE-0-2025-8028)

Tags

Sightings

Nomenclature