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openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap

🗓️ 08 Jan 2026 12:53:20Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

OpenSSL CMS RFC 3211 KEK Unwrap flaw enables memory corruption and possible code execution via PWRI messages.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64openssl1:1.1.1k-14.el8_10openssl-1:1.1.1k-14.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64leopenssl1:1.1.1k-14.el8_10openssl-1:1.1.1k-14.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xopenssl1:1.1.1k-14.el8_10openssl-1:1.1.1k-14.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64openssl1:1.1.1k-14.el8_10openssl-1:1.1.1k-14.el8_10.x86_64.rpm
Red Hat Enterprise Linux8aarch64openssl-debuginfo1:1.1.1k-14.el8_10openssl-debuginfo-1:1.1.1k-14.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64leopenssl-debuginfo1:1.1.1k-14.el8_10openssl-debuginfo-1:1.1.1k-14.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xopenssl-debuginfo1:1.1.1k-14.el8_10openssl-debuginfo-1:1.1.1k-14.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64openssl-debuginfo1:1.1.1k-14.el8_10openssl-debuginfo-1:1.1.1k-14.el8_10.x86_64.rpm
Red Hat Enterprise Linux8anyopenssl-debuginfo1:1.1.1k-14.el8_10.i686openssl-debuginfo-1:1.1.1k-14.el8_10.i686.noarch.rpm
Red Hat Enterprise Linux8aarch64openssl-debugsource1:1.1.1k-14.el8_10openssl-debugsource-1:1.1.1k-14.el8_10.aarch64.rpm
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08 Jul 2026 19:02Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
EPSS0.01744
SSVC
CWE-787
OpenSSLCMSKEK UnwrapRFC 3211Memory corruptionCode executionDenial of servicePassword based encryptionCrafted messagesVulnerability
4