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THREAT OPSThreat News › ZDI-26-425: OpenSSL OCSP Stapling Verification Double Free Remote Code Execution Vulnerability

ZDI-26-425: OpenSSL OCSP Stapling Verification Double Free Remote Code Execution Vulnerability

lowzdi_publishedPublished 2026-07-15

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenSSL. User interaction is required to exploit this vulnerability in that the target must make a request to a malicious server. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-35188.

Indicators of compromise

Original source: http://www.zerodayinitiative.com/advisories/ZDI-26-425/