CVE-2021-21748 Memory corruption in MF971R
Stack-based buffer overflows in ZTE MF971R allow attackers to execute arbitrary code on the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21748?
CVE-2021-21748 is a critical memory corruption vulnerability in MF971R, published on 20 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ZTE MF971R product has two stack-based buffer overflow vulnerabilities. An attacker could exploit the vulnerabilities to execute arbitrary code.
Weakness: CWE-787
Which versions are affected by CVE-2021-21748?
It affects 1 product.
Products include Zte Mf971r Firmware.
How do I fix CVE-2021-21748?
No fix has been published for CVE-2021-21748 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-2021-21748 being exploited?
There is no known exploitation of CVE-2021-21748 in the wild and no public exploit code.
Other vulnerabilities in MF971R
Sources
Also known as GHSA-m9f9-g5qh-gh99.