CVE-2022-24355

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13910.

Affected

TP-Link · TL-WR940N

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 TRENDMICRO

8.8 HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

8.3 HIGHAV:A/AC:L/Au:N/C:C/I:C/A:C

EPSS

2.06% chance of exploitation in the next 30 days, 81st percentile

Published

2022-02-18

Updated

2024-08-03

Proof-of-concept exploits (1)

• ilizavr/CVE-2022-243550★ · 2026-07-31

Security advisories

• https://www.zerodayinitiative.com/advisories/ZDI-22-265

References

• CVE Record
• NVD entry

Related

• CVE-2022-30024