Integer Underflow (Wrap or Wraparound) Affecting open62541 package, versions [1.3.1,]
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-CONAN-OPEN62541-18507969
- published2 Aug 2026
- disclosed30 Jul 2026
- creditUnknown
Introduced: 30 Jul 2026
NewCVE-2026-63362 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) via the PubSub signature verification process. An attacker can cause a denial of service by sending a specially crafted UDP packet.