Buffer Overflow vulnerability in msoulier tftpy commit 467017b844bf6e31745138a30e2509145b0c529c allows a remote attacker to cause a denial…

published 2024-04-29 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-50771

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

Buffer Overflow vulnerability in msoulier tftpy commit 467017b844bf6e31745138a30e2509145b0c529c allows a remote attacker to cause a denial of service via the parse function in the TftpPacketFactory class.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-46566 updated 2025-11-21 cvss 4.3

python-tftpy: buffer overflow via the parse function in the TftpPacketFactory class

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-04-30)

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

msoulier tftpy

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

github.com /msoulier/tftpy/issues/140

Sources

CVE List CVE-2023-46566
NVD CVE-2023-46566

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary