🛡️ CVE-2025-54804
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-190 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Russh is a Rust SSH client & server library. In versions 0.54.0 and below, the channel window adjust message of the SSH protocol is used to track the free space in the receive buffer of the other side of a channel. The current implementation takes the value from the message and adds it to an internal state value. This can result in a integer overflow. If the Rust code is compiled with overflow checks, it will panic. A malicious client can crash a server. This is fixed in version 0.54.1.

Details

Severity Medium
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-190
Public Exploit ✅ No
Source NVD
Published 2025-08-04
Updated 2026-06-15
Modified 2025-08-05

Affected Packages

Software From version Fixed in
russh — —
warpgate — 0.16.0

Similar Threats

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