CVE-2026-103415
— UNSCOREDpublic exploit availablePublished 2026-10-14 · Updated 2026-10-16
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
When a TLS 1.3 client processes a HelloRetryRequest, it copies the server's cookie into its second ClientHello without checking that the cookie fits in the outgoing packet. Both the length and the contents of that cookie come from the peer, and the write happens before certificate authentication completes, so a malicious or compromised server can overwrite memory past the caller supplied TLS packet buffer without presenting a certificate. Only the client path is affected.
Weaknesses
CWE-787
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- MEDIUMCVE-2017-20283
- HIGHCVE-2017-20286PoC
- UNSCOREDCVE-2025-58773
- UNSCOREDCVE-2026-0461
- UNSCOREDCVE-2026-0482
- HIGHCVE-2026-100111
- HIGHCVE-2026-100112
- HIGHCVE-2026-100127
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