CVE-2025-54804
6.5 · MEDIUMOverview
CVE-2025-54804 is a medium-severity vulnerability affecting russh_project russh. It was published on August 5, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from russh_project. Update russh to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| russh_project | russh | >= 0, < 0.54.1 | Affected |
| warpgate_project | warpgate | >= 0, < 0.16.0 | Affected |
Frequently Asked Questions
What is CVE-2025-54804?
CVE-2025-54804 is a medium-severity vulnerability affecting russh_project russh. It was published on August 5, 2025 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2025-54804?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-54804?
Check the references section for vendor advisories and patches from russh_project. Update russh to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-54804?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-54804 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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