Integer overflow in Eugeny Russh
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 implementati…
Vulnerability class: Integer Overflow
EPSS: 0.004 (30.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Eugeny Russh — versions < 0.54.1
- Russh_project Russh
- Warpgate_project Warpgate
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-54804?
- CVE-2025-54804 is a medium-severity vulnerability in Eugeny Russh, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2025-08-05.
- How severe is CVE-2025-54804?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-54804 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.