Out-of-bounds Read Affecting openssl package, versions [3.6.0,3.6.2)
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-OPENSSL-15928873
- published8 Apr 2026
- disclosed7 Apr 2026
- creditStanislav Fort, Pavel Kohout
Introduced: 7 Apr 2026
NewCVE-2026-28386 (opens in a new tab)How to fix?
Upgrade openssl to version 3.6.2 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the AES-CFB-128 process on x86-64 systems with AVX-512 and VAES support when processing partial cipher blocks. An attacker can cause a crash and application termination by providing input buffers that end at a memory page boundary with the following page unmapped.
Note:
This is only exploitable if the input buffer is positioned at a page boundary and the subsequent page is unmapped, and only when processing partial blocks.