Vulnerability · Published May 7, 2026 · Assigned by mitre
CVE-2026-44602
Low 3.7
In plain English
A low-severity null pointer dereference in Tor from torproject. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 73.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Tor before 0.4.9.7 has a NULL pointer dereference when a CERT cell is received out of order, aka TROVE-2026-006.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tor | 0.4.9.8-0+deb12u1 | DEBIAN-CVE-2026-44602 |
| Debian:13 | tor | 0.4.9.8-0+deb13u1 | DEBIAN-CVE-2026-44602 |
| Debian:14 | tor | 0.4.9.8-1 | DEBIAN-CVE-2026-44602 |
| Ubuntu:22.04:LTS | tor | no fix listed | UBUNTU-CVE-2026-44602 |
| Ubuntu:24.04:LTS | tor | no fix listed | UBUNTU-CVE-2026-44602 |
| Ubuntu:25.10 | tor | no fix listed | UBUNTU-CVE-2026-44602 |
| Ubuntu:26.04:LTS | tor | no fix listed | UBUNTU-CVE-2026-44602 |
| Ubuntu:26.10 | tor | no fix listed | UBUNTU-CVE-2026-44602 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| torproject | Tor | 0 – before 0.4.9.7 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L