CVE-2023-43520
CWE-121Published: February 6, 2024· Updated: Jun 17, 2026
Official Description
Memory corruption when AP includes TID to link mapping IE in the beacons and STA is parsing the beacon TID to link mapping IE.
Risk Analysis
Qualcomm firmware is susceptible to memory corruption when parsing beacon TID to link mapping information elements. This critical vulnerability allows for remote exploitation, potentially impacting system stability and security.
No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable.
Update the device firmware to the latest available version from the vendor to resolve the memory parsing issue.
Technical Analysis
CVE-2023-43520 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-121)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-43520 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts