Vulnerability · Published Nov 26, 2025 · Assigned by mitre
CVE-2025-63938
Medium 6.5
In plain English
A medium-severity integer overflow in the tinyproxy package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 79.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tinyproxy | no fix listed | DEBIAN-CVE-2025-63938 |
| Debian:13 | tinyproxy | no fix listed | DEBIAN-CVE-2025-63938 |
| Debian:14 | tinyproxy | 1.11.3-1 | DEBIAN-CVE-2025-63938 |
| Ubuntu:24.04:LTS | tinyproxy | no fix listed | UBUNTU-CVE-2025-63938 |
| Ubuntu:25.10 | tinyproxy | no fix listed | UBUNTU-CVE-2025-63938 |
| Ubuntu:26.04:LTS | tinyproxy | no fix listed | UBUNTU-CVE-2025-63938 |
| Ubuntu:26.10 | tinyproxy | no fix listed | UBUNTU-CVE-2025-63938 |
Affected products (as reported)
Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N