CVE-2025-8028

CRITICAL EPSS 37.3%
Published Jul 22, 202511mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Jul 22, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
37.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-1332

Affected Products 7

VendorProductVersionRange
mozillafirefox* <115.26.0
mozillafirefox* <141.0
mozillafirefox*≥128.0  –  <128.13.0
mozillafirefox*≥140.0  –  <140.1.0
mozillathunderbird* <128.13.0
mozillathunderbird* <141.0
mozillathunderbird*≥140.0  –  <140.1.0

References 9

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.