Detections
Analytics

CVE-2022-27924

high

Description

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.

References

https://www.greynoise.io/blog/unmasking-cisas-hidden-kev-ransomware-updates

https://securityaffairs.com/169708/apt/apt29-target-zimbra-and-jetbrains-teamcity.html

https://thehackernews.com/2024/10/cisa-warns-of-threat-actors-exploiting.html

https://www.ic3.gov/Media/News/2024/241010.pdf

https://www.bleepingcomputer.com/news/security/us-uk-warn-of-russian-apt29-hackers-targeting-zimbra-teamcity-servers/

https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-215a

https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report

https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-228a

https://www.tenable.com/blog/aa23-215a-2022s-top-routinely-exploited-vulnerabilities

https://github.com/alsyundawy/eradicate-zimbra-malware

https://github.com/Josexv1/CVE-2022-27925

https://github.com/tr3ss/gofetch

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27924

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24

https://wiki.zimbra.com/wiki/Security_Center

Details

Source: Mitre, NVD

Published: 2022-04-21

Updated: 2026-08-04

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

EPSS

EPSS: 0.85398