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CVE-2025-54804

22
FAUCET Score

CVE-2025-54804 is an integer overflow vulnerability in the Russh Rust SSH client and server library, affecting versions 0.54.0 and below, including products like Warpgate. A malicious client can trigger this flaw by sending a crafted channel window adjust message, leading to a server crash due to an integer overflow. With a CVSS score of 6.5 (Medium), this vulnerability is easily exploitable over the network with low attack complexity, resulting in a denial-of-service (DoS) impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.54.1CPE matchmatch criteria
cpe:2.3:a:russh_project:russh:*:*:*:*:*:rust:*:*
< 0.16.0CPE matchmatch criteria
cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 41st percentile among its peer group of 21,957 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
rustpatch availablevia ghsa
Product: russhFixed in: 0.54.1
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Dev SpacesFixed in: devspaces/code-rhel9
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Dev SpacesFixed in: devspaces-tech-preview/idea-rhel9

Vendor Advisories (2)

redhatCVE-2025-54804Moderate

russh: Russh Integer Overflow Vulnerability

Aug 5, 2025
rustGHSA-h5rc-j5f5-3gcmmedium

russh is missing overflow checks during channel windows adjust

Aug 4, 2025

References

github.com / Eugeny/russh/commit/0eb5e406780890e21ff71dd25d731b30676478e5
Patch
github.com / Eugeny/russh/security/advisories/GHSA-h5rc-j5f5-3gcm
ExploitVendor Advisory