Exim up to 4.98.1 use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Exim up to 4.98.1. This affects an unknown part. This manipulation causes use after free. This vulnerability is registered as CVE-2025-30232. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Exim up to 4.98.1. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.

It is possible to read the advisory at exim.org. This vulnerability is known as CVE-2025-30232 since 03/19/2025. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233361 (Debian dsa-5887 : exim4 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (233361) and EUVD (EUVD-2025-8527). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 233361
Nessus Name: Debian dsa-5887 : exim4 - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/19/2025 🔍
03/26/2025 +7 days 🔍
03/26/2025 +0 days 🔍
10/01/2025 +188 days 🔍

Sourcesinfo

Advisory: exim.org
Status: Confirmed

CVE: CVE-2025-30232 (🔍)
GCVE (CVE): GCVE-0-2025-30232
GCVE (VulDB): GCVE-100-301435
EUVD: 🔍

Entryinfo

Created: 03/26/2025 17:26
Updated: 10/01/2025 00:45
Changes: 03/26/2025 17:26 (51), 03/27/2025 05:10 (2), 03/28/2025 11:09 (12), 06/08/2025 06:38 (1), 10/01/2025 00:45 (12)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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