Out-of-bounds Read Affecting libcoap package, versions [,cci.20200424)
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-LIBCOAP-14236438
- published10 Dec 2025
- disclosed8 Dec 2025
- creditJon Shallow
Introduced: 8 Dec 2025
CVE-2025-59391 (opens in a new tab)How to fix?
Upgrade libcoap to version cci.20200424 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the OSCORE configuration parser. An attacker can access sensitive memory contents or cause a crash by supplying specially crafted configuration values.