CVE-2024-39929

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

41.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.5% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-07-04 00:00Z2 YR AGO

Last updated

2025-03-18 15:37Z1 YR AGO

Reserved

2024-07-04

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

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

Weaknesses

• CWE-116Improper Encoding or Escaping of OutputClass
• CWE-693Protection Mechanism FailurePillar

Data version

5.1

Document digest

82fe333d474fe78d1e23a42f0ca78e1c18dfa69769f3d2b054a8248f2b03047f

• git.exim.orghttps://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
• git.exim.orghttps://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b
• github.comhttps://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc2231.txt
• bugs.exim.orghttps://bugs.exim.org/show_bug.cgi?id=3099#c4