CVE-2023-32820 Denial of service in MT5221, MT6781, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT7663, MT7668, MT7902, MT7921, MT8168, MT8365, MT8518S, MT8532, MT8666, MT8673, MT8675, MT8695, MT8766, MT8768, MT8781, MT8786, MT8789, MT8791, MT8797, MT8798

What is CVE-2023-32820?

CVE-2023-32820 is a high-severity denial of service vulnerability in Google Android, published on 2 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In wlan firmware, there is a possible firmware assertion due to improper input handling. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07932637; Issue ID: ALPS07932637.

Weakness: CWE-617, CWE-20

Which versions are affected by CVE-2023-32820?

It affects 4 products.

Products include Google Android, Linux kernel, Linuxfoundation Yocto, Mediatek Iot Yocto.

How do I fix CVE-2023-32820?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-32820 being exploited?

There is no known exploitation of CVE-2023-32820 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

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

Also known as A-294781433, ASB-A-294781433, GHSA-x676-9gf4-jg53, M-ALPS07932637.