CVE-2021-45992 Memory corruption in n/a

What is CVE-2021-45992?

CVE-2021-45992 is a high-severity memory corruption vulnerability in n/a, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetQvlanList. This vulnerability allows attackers to cause a Denial of Service (DoS) via the qvlanName parameter.

Weakness: CWE-787

Which versions are affected by CVE-2021-45992?

It affects 2 products.

Products include Tendacn G1 Firmware, Tendacn G3 Firmware.

How do I fix CVE-2021-45992?

No fix has been published for CVE-2021-45992 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-2021-45992 being exploited?

There is no known exploitation of CVE-2021-45992 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2021-45986 Command injection in n/a Critical 9.8
• CVE-2021-45987 Command injection in n/a Critical 9.8
• CVE-2021-45990 Command injection in n/a Critical 9.8
• CVE-2022-24165 Command injection in n/a Critical 9.8
• CVE-2022-24167 Command injection in n/a Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-79vm-xpwg-c3jg.