CVE-2026-44602: CWE-476 NULL Pointer Dereference in torproject Tor
A NULL pointer dereference vulnerability exists in Tor versions before 0.4.9.7 when a CERT cell is received out of order. This issue is tracked as CVE-2026-44602 and is categorized under CWE-476. The vulnerability has a low CVSS score of 3.7 and does not impact confidentiality, integrity, but may cause a low impact on availability. No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
CVE-2026-44602 is a NULL pointer dereference vulnerability in the Tor software prior to version 0.4.9.7. It occurs when a CERT cell is received out of order, potentially causing the application to dereference a NULL pointer. This vulnerability is identified as CWE-476 and has a CVSS v3.1 base score of 3.7, indicating low severity. The vulnerability affects the Tor client and does not require privileges or user interaction to be triggered. No known exploits are reported in the wild, and no official remediation level or patch is currently documented.
Potential Impact
The vulnerability may cause a denial of service condition by crashing the Tor process due to a NULL pointer dereference. There is no impact on confidentiality or integrity. The overall impact is low availability disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor the Tor project communications for updates. No specific workaround or temporary fix is currently documented.
CVE-2026-44602: CWE-476 NULL Pointer Dereference in torproject Tor
Description
A NULL pointer dereference vulnerability exists in Tor versions before 0.4.9.7 when a CERT cell is received out of order. This issue is tracked as CVE-2026-44602 and is categorized under CWE-476. The vulnerability has a low CVSS score of 3.7 and does not impact confidentiality, integrity, but may cause a low impact on availability. No official patch or remediation guidance is currently provided by the vendor.
CVSS v3.1
Score 3.7low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44602 is a NULL pointer dereference vulnerability in the Tor software prior to version 0.4.9.7. It occurs when a CERT cell is received out of order, potentially causing the application to dereference a NULL pointer. This vulnerability is identified as CWE-476 and has a CVSS v3.1 base score of 3.7, indicating low severity. The vulnerability affects the Tor client and does not require privileges or user interaction to be triggered. No known exploits are reported in the wild, and no official remediation level or patch is currently documented.
Potential Impact
The vulnerability may cause a denial of service condition by crashing the Tor process due to a NULL pointer dereference. There is no impact on confidentiality or integrity. The overall impact is low availability disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor the Tor project communications for updates. No specific workaround or temporary fix is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-07T03:17:32.092Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fc1394cbff5d861073276b
Added to database: 5/7/2026, 4:22:44 AM
Last enriched: 5/14/2026, 10:48:51 AM
Last updated: 6/15/2026, 7:07:49 PM
Views: 72
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