CVE-2025-8028
9.8
CRITICAL
CVSS 3.1
EPSS 0.78%
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.
How to fix CVE-2025-8028
To remediate CVE-2025-8028, upgrade the affected package to a fixed version below.
- —upgrade to 128.13.0esr-1~deb11u1 or later
- —upgrade to 1:128.13.0esr-1~deb11u1 or later
Is CVE-2025-8028 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 128.13.0esr-1~deb11u1
- from 0, < 1:128.13.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |