CVE-2025-54804

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Eugeny/russh/commit/0eb5e406780890e21ff71dd25d731b30676478e5	Patch
https://github.com/Eugeny/russh/security/advisories/GHSA-h5rc-j5f5-3gcm	Exploit Vendor Advisory
https://github.com/Eugeny/russh/security/advisories/GHSA-h5rc-j5f5-3gcm	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:russh_project:russh::::::rust::*
	cpe:2.3:a:warpgate_project:warpgate::::::::

History

No history.

Information

Published : 2025-08-05 01:15

Updated : 2025-08-13 18:32

NVD link : CVE-2025-54804

Mitre link : CVE-2025-54804

CVE.ORG link : CVE-2025-54804

JSON object : View

Products Affected

warpgate_project

warpgate

russh_project

russh

CWE

CWE-190

Integer Overflow or Wraparound

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