CVE-2021-31578 Memory corruption in EN7528, EN7580
A stack buffer overflow in MediaTek Boa allows remote attackers to escalate privileges without user interaction or additional execution rights.
- 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-2021-31578?
CVE-2021-31578 is a critical memory corruption vulnerability in MediaTek, Inc. EN7528, EN7580, published on 6 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Boa, there is a possible escalation of privilege due to a stack buffer overflow. This could lead to remote escalation of privilege from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: A20210008; Issue ID: OSBNB00123241.
Weakness: CWE-787
Which versions are affected by CVE-2021-31578?
It affects 2 products.
Products include Mediatek En7528 Firmware, Mediatek En7580 Firmware.
How do I fix CVE-2021-31578?
No fix has been published for CVE-2021-31578 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-2021-31578 being exploited?
There is no known exploitation of CVE-2021-31578 in the wild and no public exploit code.
Other vulnerabilities in MediaTek, Inc. EN7528, EN7580
Sources
Also known as GHSA-g6j9-m726-789h.