CVE-2026-76668 Vulnerability Analysis & Exploit Details

CVE-2026-76668
Vulnerability Scoring

6.3
/10
High Risk

If left unpatched, CVE-2026-76668 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-76668 Details

Status: Received on 15 Oct 2026, 07:18 UTC

Published on: 15 Oct 2026, 07:18 UTC

CVSS Release: version 3

CVSS3 Source

security-alert@hpe.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

CVE-2026-76668 Vulnerability Summary

CVE-2026-76668: A security vulnerability in HPE NonStop Kernel may allow user space access to privileged or unmapped data.

Assessing the Risk of CVE-2026-76668

Access Complexity Graph

The exploitability of CVE-2026-76668 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-76668

This vulnerability, CVE-2026-76668, requires a high level of attack complexity and low privileges, making it difficult but not impossible to exploit. Organizations should ensure robust security configurations to mitigate risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-76668, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-76668, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-76668 has no significant impact on data confidentiality.
  • Integrity: High
    CVE-2026-76668 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-76668 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-76668 References

External References

CWE Common Weakness Enumeration

CWE-1260

CAPEC Common Attack Pattern Enumeration and Classification

  • Infected Memory CAPEC-456 An adversary inserts malicious logic into memory enabling them to achieve a negative impact. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems that are still under development and part of the supply chain.
  • Exploitation of Improperly Configured or Implemented Memory Protections CAPEC-679 An adversary takes advantage of missing or incorrectly configured access control within memory to read/write data or inject malicious code into said memory.

Protect Your Infrastructure against CVE-2026-76668: Combat Critical CVE Threats

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