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CVE-2025-8028

critical · 9.8

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.

9.8
CVSS
0.5%
EPSS (exploit prob.)
41st
EPSS percentile
2025-07-22
Published

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

Weaknesses

CWE-1332

Affected products

VendorProductAffected versions
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

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-8028