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CVE-2022-37041

22
FAUCET Score

CVE-2022-37041 is a high-severity vulnerability affecting Zimbra Collaboration Suite (ZCS) versions 8.8.15 and 9.0, stemming from an improper handling of the X-Forwarded-Host header in the ProxyServlet. This flaw allows an attacker to overwrite the Host header in proxied requests, bypassing the zimbraProxyAllowedDomains whitelist and enabling Server-Side Request Forgery (SSRF). With a CVSS score of 7.5, this vulnerability is easily exploitable over the network without authentication or user interaction, potentially leading to significant integrity impacts. While no public exploits or active exploitation have been observed, and community discussion is minimal, the low EPSS score suggests a low likelihood of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
8.8.15CPE matchmatch criteria
cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 20th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wiki.zimbra.com / wiki/Security_Center
PatchVendor Advisory
wiki.zimbra.com / wiki/Zimbra_Security_Advisories
Vendor Advisory