CVE-2026-24077 Integer Underflow (Wrap or Wraparound) in WLAN Host
An integer underflow in Qualcomm WLAN host allows attackers to disclose sensitive information via malformed channel switch data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-24077?
CVE-2026-24077 is a medium-severity vulnerability in Qualcomm Aqt1000 Firmware, published on 4 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Information Disclosure when processing wireless network channel switch information with improperly formatted length fields.
Weakness: CWE-191
Which versions are affected by CVE-2026-24077?
It affects 144 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware and 138 more.
How do I fix CVE-2026-24077?
Apply the vendor's patch.
Is CVE-2026-24077 being exploited?
There is no known exploitation of CVE-2026-24077 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Aqt1000 Firmware
- CVE-2025-21479 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2025-21480 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2023-28562 Buffer Copy Without Checking Size of Input in QESL
- CVE-2022-40514 Buffer copy without checking size of input in WLAN Firmware
- CVE-2022-22096 Memory corruption in Snapdragon Connectivity, Snapdragon Mobile
Sources
Also known as 4301391, A-480964577, GHSA-fc22-5h8w-j83c, PUB-A-480964577.