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JLSEC-2026-731 In TLSX_EchChangeSNI, the ctx->extensions branch set extensions unconditionally even when...

🗓️ 14 Jul 2026 21:41:35Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

TLSX_EchChangeSNI sets extensions unconditionally when Find returns NULL, attaching attacker controlled publicName to the shared WolfSSL context; cleanup and write overflow occur.

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Refs
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Family
ATTACKERKB
CVE-2026-5503
9 Apr 202622:35
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CVE-2026-5503
9 Apr 202622:35
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ANT-2026-0JRYQPCF · wolfSSL · heap-buffer-overflow
29 Mar 202620:42
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CNNVD
wolfSSL(CyaSSL) 安全漏洞
9 Apr 202600:00
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CVE
CVE-2026-5503
9 Apr 202622:35
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Cvelist
CVE-2026-5503 out-of-bounds write in TLSX_EchChangeSNI via attacker-controlled publicName
9 Apr 202622:35
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Debian CVE
CVE-2026-5503
9 Apr 202622:35
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EUVD
EUVD-2026-21234
10 Apr 202600:30
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NVD
CVE-2026-5503
9 Apr 202623:17
nvd
OSV
DEBIAN-CVE-2026-5503
9 Apr 202623:17
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