CVE-2026-44601

HIGH EPSS 25.5%
Published May 7, 20261mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Tor before 0.4.9.7, when circuit queue memory pressure exists, can experience a client crash because of a double close of a circuit, aka TROVE-2026-009.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
25.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-837

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/d4e3f6a440b58c2be661decf20c09548704907dc
    Patch
  • gitlab.torproject.org https://gitlab.torproject.org/tpo/core/tor/-/work_items/41237
    Not Applicable
  • openwall.com https://www.openwall.com/lists/oss-security/2026/05/06/8
    Mailing ListRelease Notes

Remediation

  • gitlab.torproject.org https://gitlab.torproject.org/tpo/core/tor/-/commit/d4e3f6a440b58c2be661decf20c09548704907dc
    Patch