What is CVE-2022-24355?

CVE-2022-24355 is a high-severity vulnerability in TP-Link Tl-Wr940n, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2022-02-18.

How severe is CVE-2022-24355?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-24355 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in TP-Link Tl-Wr940n

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.

Vulnerability class: Buffer Overflow

EPSS: 0.021 (80.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tp-link Tl-wr940n — versions 3.20.1 Build 200316 Rel.34392n (5553)
Tp-link Tl-wr940n_firmware

Weakness classification (CWE)

Public proof-of-concept exploits

References

zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-24355?: CVE-2022-24355 is a high-severity vulnerability in TP-Link Tl-Wr940n, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2022-02-18.
How severe is CVE-2022-24355?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-24355 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.