CyberAlerts is shutting down on June 30th, 2025. Thank you for your support!

CVE-2025-34489: GFI MailEssentials Local Privilege Escalation

7.8 CVSS

Description

GFI MailEssentials prior to version 21.8 is vulnerable to a local privilege escalation issue. A local attacker can escalate to NT Authority/SYSTEM by sending a crafted serialized payload to a .NET Remoting Service.

Classification

CVE ID: CVE-2025-34489

CVSS Base Severity: HIGH

CVSS Base Score: 7.8

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

Problem Types

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor: GFI

Product: MailEssentials

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 2.52% (scored less or equal to compared to others)

EPSS Date: 2025-05-27 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-34489
https://frycos.github.io/vulns4free/2025/04/28/mailessentials.html
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases

Timeline