What is CVE-2023-36355?

CVE-2023-36355 is a critical-severity vulnerability in Tp-link Tl-wr940n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.9/10. Published 2023-06-22.

How severe is CVE-2023-36355?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Is CVE-2023-36355 known to be exploited?

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

Buffer overflow in Tp-link Tl-wr940n

CVE-2023-36355

TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at /userRpm/WanDynamicIpV6CfgRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Vulnerability class: Buffer Overflow

EPSS: 0.317 (98.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Tp-link Tl-wr940n — versions v4
Tp-link Tl-wr940n_firmware
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2023-36355?: CVE-2023-36355 is a critical-severity vulnerability in Tp-link Tl-wr940n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.9/10. Published 2023-06-22.
How severe is CVE-2023-36355?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2023-36355 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.