CVE-2024-12343: A vulnerability classified as critical has been found in TP-Link VN020 F3v(T) TT_V6.2.1021

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MEDIUM 6.5MITIGATE

CVE-2024-12343 is a medium-severity flaw (CVSS 6.5) affecting vn020 f3v firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected is an unknown function of the file /control/WANIPConnection of the component SOAP Request Handler. The manipulation of the argument NewConnectionType leads to buffer overflow. The attack needs to be done within the local network. The exploit has been disclosed to the public and may be used.

Why this priority

EPSS top 8%: very likely to be exploited

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Weakness	CWE-119, CWE-120
Published	2024-12-08
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: tp-link

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-12-08 10:15 UTCPublished CVE record published
2026-06-17 06:59 UTCUpdated Record last modified

tp-link vn020 f3v firmware MITIGATE

Affected: 6.2.1021

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.2.1021

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-12343?

vn020 f3v firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-12343 being exploited?

CVE-2024-12343 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-12343 affect?

CVE-2024-12343 affects vn020 f3v firmware. Severity is medium (CVSS 6.5). A vulnerability classified as critical has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected is an unknown function of the file /control/WANIPConnection of the component SOAP Request Handler. The manipulation of the argument NewConn

How urgent is CVE-2024-12343?

Priority 46/100. EPSS top 8%: very likely to be exploited

Software pages

TP-Link vulnerabilities

Related CVEs

CVE-2024-12344 MEDIUM 6.3 MITIGATE A vulnerability, which was classified as critical, was found in TP-Link VN020 F3v(T) TT_V6.2.1021

References

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