{"id":"CVE-2014-2897","url":"https://www.cyber-defence.io/tools/cve/CVE-2014-2897","generatedAt":"2026-10-27T22:05:33.854Z","title":"The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.","description":"The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.","published":"2020-01-28T16:15:12.000Z","lastModified":"2026-06-17T00:07:20.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-125"],"affected":["wolfssl/wolfssl"],"epss":{"score":0.0277,"percentile":0.86224,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://seclists.org/oss-sec/2014/q2/126","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/oss-sec/2014/q2/130","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/oss-sec/2014/q2/126","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/oss-sec/2014/q2/130","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2014-2897","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}