Integer Overflow or Wraparound Affecting russh package, versions <0.54.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Aug 2025
- disclosed4 Aug 2025
- creditAndre Herms
Introduced: 4 Aug 2025
CVE-2025-54804 (opens in a new tab)How to fix?
Upgrade russh to version 0.54.1 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the CHANNEL_WINDOW_ADJUST function. An attacker can cause a crash by sending a specially crafted message with a large value to trigger an integer overflow.