CVE-2025-63938

Name: CVE-2025-63938
Creator: NVD / NIST
Published: 2025-11-26T17:15:46.44+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-63938 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.23%

13.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Tinyproxy Project	Tinyproxy	<= 1.11.2

References

https://github.com/rayinaw/my-hub/blob/main/CVE-2025-63938/DISCLOSURE.mdThird Party Advisory
https://github.com/tinyproxy/tinyproxy/commit/3c0fde94981b025271ffa1788ae425257841bf5aPatch
https://github.com/tinyproxy/tinyproxy/issues/586Exploit, Issue Tracking, Patch

Timeline

Published: Nov 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63938?

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

How severe is CVE-2025-63938?

CVE-2025-63938 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63938?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63938?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST