Integer Underflow (Wrap or Wraparound) Affecting frrouting/frr package, versions [,10.6.1)
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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Test your applications- Snyk IDSNYK-UNMANAGED-FRROUTINGFRR-16417745
- published5 May 2026
- disclosed4 May 2026
- creditUnknown
Introduced: 4 May 2026
CVE-2026-37459 (opens in a new tab)How to fix?
Upgrade frrouting/frr to version 10.6.1 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) in the processing of BGP UPDATE messages. An attacker can cause the application to crash or become unresponsive by sending specially crafted BGP UPDATE messages.