TP-Link VN020 F3v(T) FTP USER Command memory corruption

published 2024-12-08 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-50789

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 1; Exploit-DB

A vulnerability, which was classified as critical, was found in TP-Link VN020 F3v(T) TT_V6.2.1021. This affects an unknown part of the component FTP USER Command Handler. The manipulation leads to memory corruption. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Timeline

2024-12-08 Published
2025-04-17 First public exploit (EDB-52249)

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 22 mo ago (2024-12-09)

Exploit prediction

1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-52249 TP-Link VN020 F3v(T) TT_V6.2.1021 - Buffer Overflow Memory Corruption remote, 2025-04-17
github.com https://github.com/Zephkek/TP-1450 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

TP-Link VN020 F3v(T)

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787 Out-of-bounds Write

References

github.com /Zephkek/TP-1450
exploit, broken-link
vuldb.com /?id.287265
vdb-entry, third-party-advisory
vuldb.com /?ctiid.287265
signature, permissions-required, vdb-entry
vuldb.com /?submit.452658
third-party-advisory, vdb-entry
tp-link.com /
product

Sources

CVE List CVE-2024-12344
NVD CVE-2024-12344

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