PT-2026-79219 · Tor · Tor
CVE-2026-77642
·
Published
2026-08-20
·
Updated
2026-08-20
CVSS v3.1
9.3
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H |
Name of the Vulnerable Software and Affected Versions
tor versions prior to 0.4.9.9
Description
An out-of-bounds write occurs when parsing a consensus or detached signature that contains an unexpected signature digest type. While the impact is minor for most Tor roles, it could be major for directory authorities.
Recommendations
Update tor to version 0.4.9.9 or later.
Exploit
Fix
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Tor