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CVE WatchOct 15, 2026

CVE-2026-79826

A heap buffer overflow in HPE NonStop OCAX could corrupt address space and may potentially redirect execution flow.

CVSS

7.1

High

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Oct 15, 2026 · Last modified: Oct 15, 2026 · CWE-122

EPSS · 30d

Not enough EPSS history yet.

Technical description

A heap buffer overflow in HPE NonStop OCAX could corrupt address space and may potentially redirect execution flow.

Official references

support.hpe.comhttps://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-798316.6 MED

———A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.8h CVE-2026-798287.1 HIG

———A heap buffer overflow in HPE NonStop Debug Utilities could corrupt resume-execution address and may potentially redirect execution flow.9h CVE-2026-798277.1 HIG

———A heap buffer overflow in HPE NonStop Inspect Subsystem could corrupt resume-execution address and may potentially redirect execution flow.9h CVE-2026-798257.1 HIG

———A heap buffer overflow in HPE NonStop NDSREST could corrupt resume-execution address and may potentially redirect execution flow.9h CVE-2026-798227.1 HIG

———A security vulnerability in HPE NonStop TNS/X Native Inspect may cause corruption of address and potentially redirect execution flow.12h CVE-2026-101307—

———When the PCM sample array needs to grow, the RACK stack doubles a 16-bit allocation counter. Repeated doublings caused the counter to wrap to zero, resulting in a near-zero-length allocation followed by a copy of the existing samples into the undersized buffer. A remote peer can trigger the expansion by sending a sufficient number of ACKs on an established connection. A remote attacker who can establish a TCP connection to a system using the RACK stack can trigger an out-of-bounds write of approximately 512 KB in the kernel heap possibly resulting in a kernel panic.12h