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CVE-2010-4345

HighPublished

Exim Privilege Escalation Vulnerability

Published: Dec 14, 2010
Updated: Oct 22, 2025
Assigning CNA: redhat
Evidence observed: Dec 16, 2010

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

18.0%

Moderate · next 30 days

Percentile: 97.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.

Sources

Exim4 < 4.69 - string_format Function Heap Buffer Overflow (Metasploit)Exploit
Metasploit · linux · Dec 16, 2010

Responsible use

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