Skip to content
Fencer Vulns
high 7.8

CVE-2022-37393 json

Zimbra zmslapd arbitrary module load

published 2022-08-16 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-40027

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
1
Metasploit

Summary

Zimbra's sudo configuration permits the zimbra user to execute the zmslapd binary as root with arbitrary parameters. As part of its intended functionality, zmslapd can load a user-defined configuration file, which includes plugins in the form of .so files, which also execute as root.

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/linux/local/zimbra_slapper_priv_esc)
  2. Published

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/local/zimbra_slapper_priv_esc Zimbra zmslapd arbitrary module load metasploit exploit, excellent rank, 2021-10-27
  • github.com https://github.com/rapid7/metasploit-framework/pull/16807 referenced PoC, tagged "exploit" by a source, unverified
  • attackerkb.com https://attackerkb.com/topics/92AeLOE1M1/cve-2022-37393/rapid7-analysis referenced PoC, tagged "exploit" by a source, unverified
  • darrenmartyn.ie https://darrenmartyn.ie/2021/10/27/zimbra-zmslapd-local-root-exploit/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Synacor Zimbra Server

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.