Out-of-bounds Read Affecting wolfssl package, versions [0,]
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-WOLFSSL-15762323
- published24 Mar 2026
- disclosed19 Mar 2026
- creditOleh Konko
Introduced: 19 Mar 2026
NewCVE-2026-3547 (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 Out-of-bounds Read in the ALPN parsing process due to incomplete validation. An attacker can cause a process crash by sending a specially crafted ALPN protocol list that triggers an out-of-bounds read. This is only exploitable if the library is built with ALPN support enabled.
Workaround
This vulnerability can be mitigated by building without ALPN support if ALPN is not required.