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CVE detail

CVE-2024-39929

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 5.4 · MediumBuzz score 24.1

Buzz score

Why this CVE is surfacing

Buzz score total 24.1

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
16.1
4 evidence mentions in the snapshot
Diversity score
8.0
3 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
4 source links · newest first
  • Week in review: CrowdStrike update causes widespread IT outage, critical Splunk Enterprise flawHelp Net Security

    Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Faulty CrowdStrike update takes out Windows machines worldwide Hundreds of thousands and possibly millions of Windows computers and servers worldwide have been made inoperable by a faulty update of Crowdstrike Falcon Sensors, and the outage affected transport, broadcast, financial, retail and other organizations in Europe, Australia, the US and elsewhere. Here’s what we know. Critical Splunk flaw can be exploited … More →

    newswww.helpnetsecurity.comJul 21, 2024, 8:00 AM
  • Critical Exim vulnerability facilitates malware delivery (CVE-2024-39929)Help Net Security

    The maintainers of the Exim mail transfer agent (MTA) have fixed a critical vulnerability (CVE-2024-39929) that currently affects around 1.5 million public-facing servers and can help attackers deliver malware to users. About CVE-2024-39929 The vulnerability stems from a bug in RFC 2231 header parsing, and may allow remote attackers to bypass protection measures and deliver executable attachments directly to end-users’ mailboxes. “This bug can be a potential security issue for users that have implemented a … More →

    newswww.helpnetsecurity.comJul 15, 2024, 11:03 AM
  • Critical flaw in Exim MTA could allow to deliver malware to users’ inboxesSecurity Affairs

    A critical vulnerability in Exim mail server allows attackers to deliver malicious executable attachments to mailboxes. Attackers can exploit a critical security flaw, tracked as CVE-2024-39929 (CVSS score of 9.1), in the Exim mail transfer agent to deliver malicious attachments to target users’ inboxes. Exim is a widely used Mail Transfer Agent (MTA) designed to […]

    newssecurityaffairs.comJul 12, 2024, 7:25 PM
  • Critical Exim Flaw Allows Attackers to Deliver Malicious Executables to MailboxesSecurityWeek

    Successful exploitation could allow attackers to deliver executable attachments to inboxes.

    newswww.securityweek.comJul 12, 2024, 3:00 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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