CVE-2026-25268 Stack-based Buffer Overflow in WLAN Host
A stack-based buffer overflow in Qualcomm Snapdragon WLAN firmware allows attackers to execute arbitrary code or cause denial of service via invalid HT40 channel layouts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-25268?
CVE-2026-25268 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 6 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
Weakness: CWE-121
Which versions are affected by CVE-2026-25268?
It affects 128 products.
Products include Qualcomm 5g Fixed Wireless Access Platform Firmware, Qualcomm Ar8035 Firmware, Qualcomm Cq7790 Firmware, Qualcomm Cq8725s Firmware, Qualcomm Csr8811 Firmware, Qualcomm Fastconnect 6700 Firmware and 122 more.
How do I fix CVE-2026-25268?
No fix has been published for CVE-2026-25268 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-2026-25268 being exploited?
There is no known exploitation of CVE-2026-25268 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
Sources
Also known as GHSA-685v-jj9g-mfg9.