{"id":"CVE-2017-5461","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-5461","generatedAt":"2026-10-28T21:16:05.964Z","title":"Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other…","description":"Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by leveraging incorrect base64 operations.","published":"2017-05-11T01:29:06.000Z","lastModified":"2026-06-17T01:20:32.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["mozilla/network security services"],"epss":{"score":0.04703,"percentile":0.9176,"date":"2026-10-27","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 (4.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.debian.org/security/2017/dsa-3831","tags":["Patch"],"source":"security@mozilla.org"},{"url":"http://www.debian.org/security/2017/dsa-3872","tags":["Patch"],"source":"security@mozilla.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html","tags":["Patch"],"source":"security@mozilla.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html","tags":["Patch"],"source":"security@mozilla.org"},{"url":"http://www.securityfocus.com/bid/98050","tags":["Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"http://www.securitytracker.com/id/1038320","tags":["Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1100","tags":["Patch"],"source":"security@mozilla.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1101","tags":["Patch"],"source":"security@mozilla.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1102","tags":["Patch"],"source":"security@mozilla.org"},{"url":"https://access.redhat.com/errata/RHSA-2017:1103","tags":["Patch"],"source":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1344380","tags":["Issue Tracking","Permissions Required"],"source":"security@mozilla.org"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21.4_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.28.4_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.29.5_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.30.1_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201705-04","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-10/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-11/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-12/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-13/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"security@mozilla.org"},{"url":"http://www.debian.org/security/2017/dsa-3831","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2017/dsa-3872","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/98050","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038320","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1100","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1101","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1102","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2017:1103","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1344380","tags":["Issue Tracking","Permissions Required"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21.4_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.28.4_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.29.5_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.30.1_release_notes","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201705-04","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-10/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-11/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-12/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-13/#CVE-2017-5461","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-5461","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."}