CVE-2025-21443 Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Automotive Vehicle Networks
A buffer overflow in Qualcomm Snapdragon automotive firmware allows attackers to execute arbitrary code or escalate privileges via crafted message content.
- 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-2025-21443?
CVE-2025-21443 is a high-severity memory corruption vulnerability in Qualcomm Qam8255p Firmware, published on 7 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption while processing message content in eAVB.
Weakness: CWE-120
Which versions are affected by CVE-2025-21443?
It affects 36 products.
Products include Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8620p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qamsrv1h Firmware and 30 more.
How do I fix CVE-2025-21443?
No fix has been published for CVE-2025-21443 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-2025-21443 being exploited?
There is no known exploitation of CVE-2025-21443 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Qam8255p Firmware
Sources
Also known as GHSA-qwvv-jxhc-mf6r.