CVE-2026-15442 (GCVE-0-2026-15442)

Vulnerability from cvelistv5 – Published: 2026-09-27 09:24 – Updated: 2026-09-27 09:24
VLAI
Title
Heap use-after-free on read during bidirectional (D)TLS shutdown
Summary
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.
Severity
2.3 (Low)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
wolfSSL wolfSSL Affected: 4.4.0 , ≤ 5.9.2 (semver)
guessed Create a notification for this product.
Date Public
2026-09-26 12:00
Credits
Fuzz0x team
Show details on NVD website
To clipboard 

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