CVEs / CVE-2022-27924
CVE-2022-27924: Synacor Zimbra Collaboration Suite (ZCS) Command Injection Vulnerability
- Known exploited in the CISA KEV catalog since 4 Aug 2022
- high 7.5 CVSS 3.1 (NVD)
- EPSS 93.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Synacor Zimbra Collaboration Suite (ZCS) allows an attacker to inject memcache commands into a targeted instance which causes an overwrite of arbitrary cached entries.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 4 Aug 2022 |
|---|---|
| Due date for US federal agencies | 25 Aug 2022 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NScored by NVD |
|---|---|
| Weakness | CWE-74 |
References
- CVE-2022-27924 on NVD
- CVE-2022-27924 in the CISA KEV catalog
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24.1#Security_Fixes (cited by CISA)
- CVE-2022-27924 on OSV
- https://wiki.zimbra.com/wiki/Security_Center Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24 Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27924 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.