{"id":"CVE-2022-27924","title":"Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance","summary":"Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance. These memcache commands becomes unescaped, causing an overwrite of arbitrary cached entries.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-74","CWE-74"],"vendor":"synacor","product":"zimbra_collaboration_suite","affected":["zimbra_collaboration_suite = 8.8.15","zimbra_collaboration_suite = 9.0.0"],"published":"2022-04-21","updated":"2026-08-04","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-27924","references":[{"url":"https://wiki.zimbra.com/wiki/Security_Center","label":"cve@mitre.org"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24","label":"cve@mitre.org"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","label":"cve@mitre.org"},{"url":"https://wiki.zimbra.com/wiki/Security_Center","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27924","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.85398,"epssPercentile":0.99715,"kev":true,"kevDateAdded":"2022-08-04","kevDueDate":"2022-08-25","kevRansomware":true,"exploited":true,"ingestedAt":"2026-08-04T05:36:12.216Z","exploits":{"nuclei":["CVE-2022-27924"],"checkedAt":"2026-09-21T15:25:20.644Z"},"exploitAvailable":true,"slug":"CVE-2022-27924","body":"## Overview\n\nZimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance. These memcache commands becomes unescaped, causing an overwrite of arbitrary cached entries.\n\n## Affected\n\n- `zimbra_collaboration_suite = 8.8.15`\n- `zimbra_collaboration_suite = 9.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":88,"depthScoreParts":{"impact":41.3,"likelihood":17.1,"exploitation":25,"ransomware":5},"changes":[{"seq":4608,"id":"CVE-2022-27924","ts":1788887193953,"field":"exploit_available","old":"false","new":"true"},{"seq":3491,"id":"CVE-2022-27924","ts":1788886310384,"field":"exploit_available","old":"true","new":"false"},{"seq":2345,"id":"CVE-2022-27924","ts":1788882979873,"field":"exploit_available","old":"false","new":"true"},{"seq":1374,"id":"CVE-2022-27924","ts":1788882392488,"field":"exploit_available","old":"true","new":"false"},{"seq":488,"id":"CVE-2022-27924","ts":1788881828330,"field":"exploit_available","old":"false","new":"true"}]}