{"id":"CVE-2021-23222","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-23222","generatedAt":"2026-10-27T20:23:05.021Z","title":"A man-in-the-middle attacker can inject false responses to the client's first few queries, despite the use of SSL certificate verification and encryption.","description":"A man-in-the-middle attacker can inject false responses to the client's first few queries, despite the use of SSL certificate verification and encryption.","published":"2022-03-02T23:15:09.000Z","lastModified":"2026-06-17T03:38:27.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-522"],"affected":["postgresql/postgresql"],"epss":{"score":0.01501,"percentile":0.74108,"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":"low","text":"Lower severity and a low EPSS score (1.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2022675","tags":["Issue Tracking","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://git.postgresql.org/gitweb/?p=postgresql.git%3Ba=commitdiff%3Bh=d83cdfdca9d918bbbd6bb209139b94c954da7228","source":"secalert@redhat.com"},{"url":"https://github.com/postgres/postgres/commit/160c0258802d10b0600d7671b1bbea55d8e17d45","tags":["Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/202211-04","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.postgresql.org/support/security/CVE-2021-23222/","tags":["Release Notes","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2022675","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.postgresql.org/gitweb/?p=postgresql.git%3Ba=commitdiff%3Bh=d83cdfdca9d918bbbd6bb209139b94c954da7228","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/postgres/postgres/commit/160c0258802d10b0600d7671b1bbea55d8e17d45","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202211-04","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.postgresql.org/support/security/CVE-2021-23222/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23222","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."}