Is CVE-2024-34083 in the CISA KEV catalog?

No. CVE-2024-34083 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-34083?

CVE-2024-34083 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2024-34083?

CVE-2024-34083 has an EPSS score of 0.23% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-34083?

Upgrade python-aiosmtpd on debian 11 to 1.2.2-1+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2024-34083

MEDIUM

5.4

CVSS v3

NVD

Description

aiosmptd is a reimplementation of the Python stdlib smtpd.py based on asyncio. Prior to version 1.4.6, servers based on aiosmtpd accept extra unencrypted commands after STARTTLS, treating them as if they came from inside the encrypted connection. This could be exploited by a man-in-the-middle attack. Version 1.4.6 contains a patch for the issue.

CWE-349

How to fix

Remediation Available

python-aiosmtpdDebian

Fixed in:1.2.2-1+deb11u1CVE-2024-34083

Fixed in:1.4.3-1.1+deb12u1CVE-2024-34083

Fixed in:1.4.6-1CVE-2024-34083

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-349 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-9535	Critical	9.8	2.5%	-	-
CVE-2026-32162	High	8.4	2.0%	-	Fix
CVE-2018-1131	High	8.8	1.3%	-	-
CVE-2021-21374	High	8.1	1.0%	-	Fix
CVE-2024-21094	Low	3.7	0.7%	-	Fix
CVE-2025-48804	Medium	6.8	0.5%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.