CVE-2026-79830

Code execution via stack buffer overflow

Published Oct 15, 2026 · Updated Oct 15, 2026

Stack buffer overflow in HPE NonStop Kernel Level Thread (KLT) Model Library T1132L01 allows local users to execute arbitrary code. The affected function, triggering input, and erroneous buffer operation are not disclosed in the retrievable CNA record; the referenced vendor bulletin was not readable. Exploitation requires low-privileged local access, and the record does not establish privilege escalation.

CVSS severity6.6
Medium
EPSS probability0.11%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in HPE NonStop Kernel Level Thread (KLT) Model Library T1132L01 allows local users to execute arbitrary code. The affected function, triggering input, and erroneous buffer operation are not disclosed in the retrievable CNA record; the referenced vendor bulletin was not readable. Exploitation requires low-privileged local access, and the record does not establish privilege escalation.

The record

CVE
CVE-2026-79830
Published
Oct 15, 2026
Updated
Oct 15, 2026
Vendor
Hewlett Packard Enterprise
Product
HPE NonStop Kernel Level Thread (KLT) Model Library
Classifications
CWE-121, CAPEC-24
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=T1132L01

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Hewlett Packard Enterprise · HPE NonStop Kernel Level Thread (KLT) Model Libraryversion=T1132L01

Published CVSS scores

6.6Hewlett Packard EnterpriseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CAPEC-24Filter Failure through Buffer Overflow

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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