CVE•Published 2022-04-21•Modified 2026-10-02•2 articles on news•6 live references•NVD data

CVE-2022-27924Synacor · Zimbra_collaboration_suite

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

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

EPSS percentile

100

Exploit Prediction Scoring System · top 0% of all CVEs

Weaknesses (CWE)

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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.

Timeline

Published 2022-04-21

Modified 2026-10-02

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2022-27924

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product + version

product:"Synacor Zimbra Collaboration Suite" version:"8.8.15"

Version-pinned fingerprint from NVD's first vulnerable CPE.

Shodan · banner/body mention

http.html:"Zimbra Collaboration Suite"

HTTP body or banner mentions "Zimbra Collaboration Suite" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2022-27924