CVE-2024-39929

mediumpriority · track · 25EPSS 0.415 · 99 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

41.5% (99th) EPSS

CVSS 5.4 · medium

Is it mine?

16 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumAV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Nsecondary · ENISA EU

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Nsecondaryexploitability 2.8 · impact 2.5

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-116USCWE-693US

exploits (2)

Public proof-of-concept and weaponised exploit code.

michael-david-fry/CVE-2024-39929POC to test CVE-2024-39929 against EXIM mail serversPoC · poc_in_github
rxerium/CVE-2024-39929Detection method for Exim vulnerability CVE-2024-39929 PoC · poc_in_github

affected products (16)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Exim <4.98all versionscert_bundDE
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Exim< 4.98cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
GNU General Public License exim≤ 4.98fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.14fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Common Edition≤ 1.6 «Смоленск»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.8fstec_bduRU
exim exim≤ 4.97.1nvdUScpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1527Exim: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2024-07-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Exim ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2024-07-04modified 2026-06-17

references (19)

External citations — patches, advisories, analysis.

scry

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