CVE-2021-42687 Memory corruption in n/a
Local attackers can execute arbitrary kernel-mode code or crash the system via a buffer overflow in the HyWorks Windows Client IOCTL handler.
- 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-2021-42687?
CVE-2021-42687 is a high-severity memory corruption vulnerability in n/a, published on 7 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.
Weakness: CWE-120
Which versions are affected by CVE-2021-42687?
It affects 1 product.
Products include Accops Hyworks Windows Client.
How do I fix CVE-2021-42687?
No fix has been published for CVE-2021-42687 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-2021-42687 being exploited?
There is no known exploitation of CVE-2021-42687 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9pcg-8c48-p52v.