CVE-2025-9230: Out-of-bounds read & write in RFC 3211 KEK Unwrap
Description
Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application. The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service or Execution of attacker-supplied code. Although the consequences of a successful exploit of this vulnerability could be severe, the probability that the attacker would be able to perform it is low. Besides, password based (PWRI) encryption support in CMS messages is very rarely used. For that reason the issue was assessed as Moderate severity according to our Security Policy. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · CWE-125, CWE-787
Status incidents that name it
- · Maintenance · names this CVE
“[Scheduled] Security Patching of OpenSSL Vulnerability (CVE-2025-9230) The scheduled maintenance has been completed.”
Affected vendors and products
OpenSSL: OpenSSLSiemens: RUGGEDCOM RST2428PSiemens: SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familySiemens: SCALANCE XCH328Siemens: SCALANCE XCM324Siemens: SCALANCE XCM328Siemens: SCALANCE XCM332Siemens: SCALANCE XRH334 (24 V DC, 8xFO, CC)Siemens: SCALANCE XRM334 (230 V AC, 12xFO)Siemens: SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+)Siemens: SCALANCE XRM334 (230 V AC, 8xFO)Siemens: SCALANCE XRM334 (24 V DC, 12xFO)Siemens: SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)Siemens: SCALANCE XRM334 (24 V DC, 8xFO)Siemens: SCALANCE XRM334 (2x230 V AC, 12xFO)Siemens: SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)Siemens: SCALANCE XRM334 (2x230 V AC, 8xFO)Siemens: SIDIS PrimeSiemens: SIDIS Secured SmartPlugSiemens: SIMATIC CN 4100Siemens: SIMATIC S7-1500 CPU 1518-4 PN/DP MFPSiemens: SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPSiemens: SIMATIC S7-1500 TM MFP - GNU/Linux subsystemSiemens: SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/openssl/openssl/commit/5965ea5dd6960f36d8b7f74f8eac67a8eb8f2b45 (opens in new tab)
- github.com/openssl/openssl/commit/9e91358f365dee6c446dcdcdb01c04d2743fd280 (opens in new tab)
- github.com/openssl/openssl/commit/a79c4ce559c6a3a8fd4109e9f33c1185d5bf2def (opens in new tab)
- github.com/openssl/openssl/commit/b5282d677551afda7d20e9c00e09561b547b2dfd (opens in new tab)
- github.com/openssl/openssl/commit/bae259a211ada6315dc50900686daaaaaa55f482 (opens in new tab)
- github.openssl.org/openssl/extended-releases/commit/c2b96348bfa662f25f4fabf81958ae822063… (opens in new tab)
- github.openssl.org/openssl/extended-releases/commit/dfbaf161d8dafc1132dd88cd48ad990ed9b4… (opens in new tab)
- openssl-library.org/news/secadv/20250930.txt (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)