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CVE-2025-9230 is an out-of-bounds memory access vulnerability in OpenSSL's implementation of RFC 3211 KEK unwrap used during CMS message decryption. An application attempting to decrypt CMS messages encrypted using password-based encryption support for PWRI can be driven into both out-of-bounds read and out-of-bounds write conditions by maliciously crafted input. The flaw is described as residing in the RFC 3211 KEK unwrap processing path and affects OpenSSL branches fixed in 3.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18, and corresponding premium-support fixes for older branches. The OpenSSL FIPS modules for 3.5, 3.4, 3.3, 3.2, 3.1, and 3.0 are not affected because the vulnerable CMS implementation is outside the FIPS module boundary.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
74 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Denial-of-service condition associated with an outdated OpenSSL version used by SAP NetWeaver AS Java Adobe Document Services component.
An out-of-bounds read and write vulnerability in RFC 3211 KEK Unwrap handling in OpenSSL.
An out-of-bounds read and write issue in RFC 3211 KEK Unwrap in OpenSSL.
An out-of-bounds read and write issue in RFC 3211 KEK Unwrap in OpenSSL, fixed in the 3.5.4 security patch release.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.