CVE-2026-76663: CWE-121 Stack-based buffer overflow in Hewlett Packard Enterprise HPE NonStop TELSERV
Description
CVE-2026-76663 is a stack-based buffer overflow vulnerability in Hewlett Packard Enterprise's HPE NonStop TELSERV component. This flaw can lead to memory corruption and potentially cause a denial of service (DoS) condition. The vulnerability has a high severity rating with a CVSS score of 7.5. No specific affected versions or patches have been disclosed in the provided data.
CVSS v3.1
Score 7.5high
Affected software
Hewlett Packard Enterprise
HPE NonStop TELSERV
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-76663) involves a stack-based buffer overflow in HPE NonStop TELSERV. Exploitation of this flaw may result in memory corruption that causes a denial of service. The CVSS 3.1 vector indicates it is remotely exploitable without privileges or user interaction (AV:N/AC:L/PR:N/UI:N) and impacts availability only (A:H) without affecting confidentiality or integrity.
Potential Impact
Successful exploitation can cause denial of service by crashing or destabilizing the affected service due to memory corruption. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, monitor vendor communications for updates. No specific mitigations or workarounds are provided in the current data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hpe
- Date Reserved
- 2026-08-19T16:10:37.083Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad03b962cdf04f656f8733c
Added to database: 10/15/2026, 02:33:58 UTC
Last enriched: 10/15/2026, 02:48:15 UTC
Last updated: 10/15/2026, 02:49:00 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.