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CVE-2026-15442

Heap use-after-free on read during bidirectional (D)TLS shutdown PUBLISHED

Description (CNA)

In all builds that make use of (D)TLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSL_read() which is sometimes caused by a small user buffer passed in, then called wolfSSL_shutdown for a bidirectional close and attempted to wolfSSL_read() again while the peer continues trying to send data during the shutdown it would lead to a state where a potential heap-use-after free happened.

Affected (CNA)

Vendor / productVersions
wolfSSL / wolfSSLaffected 4.4.0 through 5.9.2

CWE

CWE-416

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.