Vulnerability · Published Oct 15, 2026 · Assigned by hpe
CVE-2026-79831HPE NonStop Posix User Threads - Heap buffer overflow vulnerability
Medium 6.6
In plain English
A medium-severity heap buffer overflow in HPE NonStop Posix User Threads from Hewlett Packard Enterprise. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS 3.1)6.6Medium
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hewlett Packard Enterprise | HPE NonStop Posix User Threads | T1280L02^ACG and earlier |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H