CVE-2022-26437 Memory corruption in MT2621, MT2625

Critical 9.8 Published 1 Aug 2022 Updated 3 Aug 2024

An out-of-bounds write in MediaTek httpclient allows remote attackers to escalate privileges without user interaction.

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-2022-26437?

CVE-2022-26437 is a critical memory corruption vulnerability in MediaTek, Inc. MT2621, MT2625, published on 1 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In httpclient, there is a possible out of bounds write due to uninitialized data. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WSAP00103831; Issue ID: WSAP00103831.

Weakness: CWE-908

Which versions are affected by CVE-2022-26437?

It affects 1 product.

Products include Mediatek Nbiot Sdk.

How do I fix CVE-2022-26437?

No fix has been published for CVE-2022-26437 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-2022-26437 being exploited?

There is no known exploitation of CVE-2022-26437 in the wild and no public exploit code.

Sources

Also known as GHSA-whw7-86fg-mj85.