Cyber Resilience

CVE-2026-44602

LowUpdated

Published: 07 May 2026

Published
07 May 2026
Modified
17 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0033 24.9th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2026-44602 is a low-severity NULL Pointer Dereference (CWE-476) vulnerability in Torproject Tor. Its CVSS base score is 3.7 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 24.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability details

Tor before 0.4.9.7 has a NULL pointer dereference when a CERT cell is received out of order, aka TROVE-2026-006.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

NULL pointer dereference in Tor protocol handling directly enables remote crash/DoS via crafted CERT cells, matching application exploitation for endpoint denial of service.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-44597Same product: Torproject Tor
CVE-2021-34549Same product: Torproject Tor
CVE-2026-44601Same product: Torproject Tor
CVE-2026-44600Same product: Torproject Tor
CVE-2026-44599Same product: Torproject Tor
CVE-2021-34550Same product: Torproject Tor
CVE-2021-38385Same product: Torproject Tor
CVE-2021-34548Same product: Torproject Tor
CVE-2026-44603Same product: Torproject Tor
CVE-2022-33903Same product: Torproject Tor

Affected Assets

torproject
tor
≤ 0.4.9.7

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References