Vulnerability · Published Feb 23, 2026 · Assigned by mitre
CVE-2025-61143
Medium 5.5
In plain English
A medium-severity null pointer dereference in the tiff package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 97.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tiff | no fix listed | DEBIAN-CVE-2025-61143 |
| Debian:13 | tiff | no fix listed | DEBIAN-CVE-2025-61143 |
| Debian:14 | tiff | 4.7.1-1 | DEBIAN-CVE-2025-61143 |
| Ubuntu:22.04:LTS | neuron | no fix listed | UBUNTU-CVE-2025-61143 |
| Ubuntu:25.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2025-61143 |
| Ubuntu:26.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2025-61143 |
| Ubuntu:25.10 | texmaker | no fix listed | UBUNTU-CVE-2025-61143 |
| Ubuntu:22.04:LTS | tiff | 4.3.0-6ubuntu0.13 | UBUNTU-CVE-2025-61143 |
| Ubuntu:24.04:LTS | tiff | 4.5.1+git230720-4ubuntu2.5 | UBUNTU-CVE-2025-61143 |
| Ubuntu:25.10 | tiff | 4.7.0-3ubuntu3.1 | UBUNTU-CVE-2025-61143 |
| Ubuntu:26.04:LTS | tiff | 4.7.0-3ubuntu5 | UBUNTU-CVE-2025-61143 |
| Ubuntu:26.04:LTS | tiff | 4.7.0-3ubuntu5 | USN-8113-2 |
| Ubuntu:26.10 | tiff | 4.7.0-3ubuntu4 | UBUNTU-CVE-2025-61143 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H