CVE-2026-93433 Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd page parsing
An attacker controlling a storage device can cause a denial of service via stack buffer overflow in libstoragemgmt during SCSI VPD parsing.
- 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-2026-93433?
CVE-2026-93433 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 21 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
Weakness: CWE-121
Which versions are affected by CVE-2026-93433?
How do I fix CVE-2026-93433?
No fix has been published for CVE-2026-93433 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-2026-93433 being exploited?
There is no known exploitation of CVE-2026-93433 in the wild and no public exploit code.
Sources
Also known as AZL-107994, GHSA-x944-xgqc-pphj.