CVE-2025-8028

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1971581	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-56/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-57/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-58/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-59/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-61/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-62/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-63/	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:firefox:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::esr:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*
	cpe:2.3:a:mozilla:thunderbird:::::esr:::*

History

No history.

Information

Published : 2025-07-22 21:15

Updated : 2026-06-17 10:06

NVD link : CVE-2025-8028

Mitre link : CVE-2025-8028

CVE.ORG link : CVE-2025-8028

JSON object : View

Products Affected

mozilla

thunderbird
firefox

CWE

CWE-1332

Improper Handling of Faults that Lead to Instruction Skips

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