CVE-2021-35003

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer C90 1.0.6 Build 20200114 rel.73164(5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14655.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 10.63% Top 10%
Third-Party Advisory zerodayinitiative.com
Affected: TP-Link Archer C90
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-22-080/ vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-35003?
CVE-2021-35003 has been scored as a critical severity vulnerability.
How to fix CVE-2021-35003?
To fix CVE-2021-35003, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-35003 being actively exploited in the wild?
It is possible that CVE-2021-35003 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~11% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-35003?
CVE-2021-35003 affects TP-Link Archer C90.
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