CVE-2026-91255 Vulnerability in the Oracle Solaris product of Oracle Systems (component: Kernel).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-91255?
CVE-2026-91255 is a high-severity vulnerability in Oracle Solaris, published on 20 Oct 2026.
Official description
Vulnerability in the Oracle Solaris product of Oracle Systems (component: Kernel). The supported version that is affected is 11.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Solaris. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Weakness: CWE-400
Which versions are affected by CVE-2026-91255?
How do I fix CVE-2026-91255?
No fix has been published for CVE-2026-91255 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91255 being exploited?
There is no known exploitation of CVE-2026-91255 in the wild and no public exploit code.
Sources
Also known as GHSA-mxxf-3ggm-8fjh.