CVE-2026-44597

CRITICAL EPSS 35.9%
Published May 7, 20261mo ago · Modified Jun 17, 20261w ago
9.1 CVSS 3.1
Critical
Find Similar
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
35.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-684

Affected Products 1

VendorProductVersionRange
torprojecttor* <0.4.9.7

References 4

  • forum.torproject.org https://forum.torproject.org/c/news/tor-release-announcement/28
    Release Notes
  • gitlab.torproject.org https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481
    Patch
  • gitlab.torproject.org https://gitlab.torproject.org/tpo/core/tor/-/work_items/41254
    Broken Link
  • openwall.com https://www.openwall.com/lists/oss-security/2026/05/06/8
    Mailing ListThird Party Advisory

Remediation

  • gitlab.torproject.org https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481
    Patch