#VU72934 Heap-based Buffer Overflow in MediaTek products - CVE-2021-32486

Vulnerability identifier: #VU72934

Vulnerability risk: High

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2021-32486

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
MT6739
MT6761
MT6762
MT6762D
MT6762M
MT6763
MT6765
MT6765T
MT6767
MT6768
MT6769
MT6769T
MT6769Z
MT6771
MT6783
MT6785T
MT6779
MT6785

Software vendor:
MediaTek

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a heap buffer overflow within Modem 2G RRM. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary code.

Install security update from vendor's website.

• https://corp.mediatek.com/product-security-bulletin/September-2021