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Vulnerabilities

Vulnerability · CVE-2025-34490

GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity (XXE) issue.

Published Apr 28, 2025 · catalog updated Nov 19, 2025 · GFI MailEssentials

Check if you run it

No confirmed exploitation is on record for CVE-2025-34490. EPSS is 0.72%. Act only if a listed version of GFI MailEssentials is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.72%
Remediation
Version ranges on file
Affected products
vendor GFI MailEssentials 0 <21.8

GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity (XXE) issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor GFI MailEssentials 0 <21.80 <21.8

How to fix CVE-2025-34490

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-34490. EPSS is 0.72%. Act only if a listed version of GFI MailEssentials is installed.

Which versions are affected?

Compare what you have installed with GFI MailEssentials 0 <21.8 0 <21.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.72%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 28, 2025 · EUVD

    Detected

    GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity (XXE) issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files.

  2. Nov 19, 2025 · EUVD

    Updated

    GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity (XXE) issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files.

Sources

  • CVE.orgVulnerability recordCVE-2025-34490

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-34490

    30-day exploitation probability 0.7%

    first.org
  • EUVDVulnerability recordEUVD-2025-14684

    GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity (XXE) issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.