CVE-2023-33536 Memory corruption in n/a

High 8.1 Published 7 Jun 2023 Updated 7 Jan 2025

A buffer overflow in TP-Link wireless routers allows attackers to execute arbitrary code or cause a denial of service via the WLAN MAC filter component.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-33536?

CVE-2023-33536 is a high-severity memory corruption vulnerability in n/a, published on 7 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via the component /userRpm/WlanMacFilterRpm.

Weakness: CWE-125

Which versions are affected by CVE-2023-33536?

It affects 3 products.

Products include Tp-Link Tl-Wr740n Firmware, Tp-Link Tl-Wr841n Firmware, Tp-Link Tl-Wr940n Firmware.

How do I fix CVE-2023-33536?

No fix has been published for CVE-2023-33536 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-33536 being exploited?

There is no known exploitation of CVE-2023-33536 in the wild and no public exploit code.

Sources

Also known as GHSA-p5rh-5p7r-hq76.