PT-2025-39837 · Mongoose+1 · Mongoose+1

Cainiao159357 · Published 2025-09-29 · Updated 2025-12-23 · CVE-2025-51495

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Mongoose versions 7.5 through 7.17

Description An integer overflow exists in the WebSocket component. Sending a specially crafted WebSocket request can cause the application to crash. Improper integration by downstream vendors may lead to a buffer overflow.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Integer Overflow

Weakness Enumeration

CWE-121

CWE-190

Related Identifiers

ALT-PU-2025-14822

CVE-2025-51495

Affected Products

Alt Linux

Mongoose

References · 16

• 🔥 https://github.com/cainiao159357/CVE-2025-51495 · Exploit
• https://github.com/cesanta/mongoose/pull/3131 · Patch
• https://cve.org/CVERecord?id=CVE-2025-51495 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-51495 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-51495 · Security Note
• https://osv.dev/vulnerability/CVE-2025-51495 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-51495 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-51495 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-51495 · Vendor Advisory
• https://github.com/cesanta/mongoose/commit/cdc439bc38570048541b2ac6b9c326da87bf4a0a · Note
• https://github.com/cesanta/mongoose · Note
• https://t.me/CVEtracker/33632 · Telegram Post
• https://twitter.com/CVEnew/status/2003567340546310546 · Twitter Post
• http://mongoose.com · Note
• https://twitter.com/cracbot/status/1974429343666352525 · Twitter Post