HPE NonStop HTTP WEBSERVER: Memory corruption vulnerability
Summary
A flaw in the HPE NonStop HTTP WEBSERVER can cause memory corruption, which may lead to a system halt. The CVSS vector indicates a network-reachable attack without privileges or user interaction, with high availability impact and low confidentiality and integrity impact. Exposure matters most where the web server is reachable from untrusted networks; NonStop is a niche high-availability platform, so the relevance for typical SMEs is low.
Affected
- HPE NonStop HTTP WEBSERVER T1144L24^AAL and earlier (per CNA record; default: affected)
Fixed in
- Unknown. The vendor bulletin lists T1144K24 for L26.10 onwards and T1144L24^AAM for L24.08–L25.09 as available, but the mapping to this CVE is not confirmed. Verify in HPESBNS05148.
Workaround
- Unknown. No CVE-specific workaround found. Check the vendor advisory. If no fix is applicable, restrict network access to the HTTP service to trusted sources.
Exploitation
- No evidence of exploitation in the wild found.
- CISA SSVC: exploitation none, automatable yes, technical impact partial.
- No public proof of concept found.
- EPSS 0.00401 (low).
- Not listed in KEV according to a third-party aggregator; verify against CISA KEV.
Our recommendation
- If you run HPE NonStop systems, check HPESBNS05148 for your RVU, apply the applicable fix, and verify the fixed version with HPE.
- Restrict network access to the HTTP web server to trusted sources until patched.
- Monitor for unusual crashes or halts of the web server.
- If you do not run NonStop, no action is needed.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- HPE advisory HPESBNS05148 support.hpe.com
- OpenCVE CVE-2026-79829 app.opencve.io
- VulDB entry 420602 vuldb.com
- Vulners CVE record vulners.com
- Vulners NVD mirror vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 16:01.
Original description (NVD)
A security vulnerability in HPE NonStop HTTP WEBSERVER can cause memory corruption which may result in a system halt.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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