CVE-2026-5392: low-severity vulnerability in wolfSSL
wolfSSL heap OOB read in PKCS7 SignedData streaming
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.3epss 0.2%
Heap out-of-bounds read in PKCS7 parsing. A crafted PKCS7 message can trigger an OOB read on the heap. The missing bounds check is in the indefinite-length end-of-content verification loop in PKCS7_VerifySignedData().
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
wolfSSL · wolfSSLRelated CVEs — wolfSSL
In the same product, most dangerous first.
CVE-2017-13099HIGHwolfSSL Bleichenbacher/ROBOTEPSS 27.4%CVE-2017-2800HIGHCVE-2017-2800EPSS 8.5%CVE-2024-0901HIGHSEGV and out of bounds memory read from malicious packetEPSS 0.7%CVE-2023-3724CRITICALTLS 1.3 client issue handling malicious server when not including a KSE and PSK extensionEPSS 0.7%CVE-2023-6936MEDIUM Heap-buffer over-read with WOLFSSL_CALLBACKSEPSS 0.6%CVE-2026-5194CRITICALwolfSSL ECDSA Certificate VerificationEPSS 0.6%