8.1
CWE
125 119
Advisory Published
Updated

CVE-2023-33537: Buffer Overflow

First published: Wed Jun 07 2023(Updated: )

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/FixMapCfgRpm.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Tp-link Tl-wr940n Firmware
TP-Link TL-WR940N=2.0
TP-Link TL-WR940N=4.0
Tp-link Tl-wr841n Firmware
TP-LINK TL-WR841N=8.0
TP-LINK TL-WR841N=10.0
Tp-link Tl-wr740n Firmware
TP-Link TL-WR740N V6=1.0
TP-Link TL-WR740N V6=2.0
All of
Tp-link Tl-wr940n Firmware
Any of
TP-Link TL-WR940N=2.0
TP-Link TL-WR940N=4.0
All of
Tp-link Tl-wr841n Firmware
Any of
TP-LINK TL-WR841N=8.0
TP-LINK TL-WR841N=10.0
All of
Tp-link Tl-wr740n Firmware
Any of
TP-Link TL-WR740N V6=1.0
TP-Link TL-WR740N V6=2.0

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Frequently Asked Questions

  • What is CVE-2023-33537?

    CVE-2023-33537 is a vulnerability found in TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 routers. It allows an attacker to execute arbitrary code or cause a denial of service.

  • How severe is CVE-2023-33537?

    CVE-2023-33537 has a severity rating of 8.1, which is categorized as high.

  • What software versions are affected by CVE-2023-33537?

    TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 routers are affected by CVE-2023-33537.

  • How can an attacker exploit CVE-2023-33537?

    An attacker can exploit CVE-2023-33537 by sending a specially crafted request to the /userRpm/FixMapCfgRpm component, which triggers a buffer overflow and allows the execution of arbitrary code.

  • Is there a fix for CVE-2023-33537?

    To fix CVE-2023-33537, users should update their routers to the latest firmware version provided by TP-Link.

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