Description
As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76528 are related to protection mechanism failure and are grouped under the Common Weakness Enumeration (CWE) CWE-693.
Published: 2026-10-21
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Access
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is a protection mechanism failure identified in Splunk SOAR. This weakness can allow an attacker to bypass or disable protective controls, potentially enabling unauthorized access or execution of privileged actions. The flaw is classified as CWE-693, which describes the failure to implement adequate protection or control, and can lead to elevated privileges or unauthorized data exposure.

Affected Systems

The flaw affects Splunk SOAR installations, though the specific affected versions are not listed. Splunk recommends upgrading to version 8.7.0 or newer, which contains the fix for the protection mechanism failure.

Risk and Exploitability

The CVSS score of 9.8 indicates critical severity, while the EPSS score of less than 1% shows a low probability of exploitation in the current environment. The vulnerability is not listed in the CISA KEV catalog, and specific exploit details remain undisclosed, so the likelihood of successful exploitation remains uncertain. Nonetheless, a protection mechanism failure of this magnitude can have severe consequences if an attacker manages to bypass controls, making it a significant risk in environments where Splunk SOAR is exposed without additional safeguards.

Generated by OpenCVE AI on November 2, 2026 at 23:53 UTC.

Remediation

Vendor Solution

Upgrade Splunk SOAR to version 8.7.0 or higher.


OpenCVE Recommended Actions

  • Upgrade Splunk SOAR to version 8.7.0 or higher to apply the vendor‑issued fix.
  • Revoke or minimize privileges for users and roles that interact with the affected functionality, reducing the potential impact of a bypass.
  • Enable logging and monitor for unusual activity in Splunk SOAR to detect potential protection mechanism abuse.

Generated by OpenCVE AI on November 2, 2026 at 23:53 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 03 Nov 2026 10:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 02 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 22 Oct 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Splunk
Splunk splunk
Vendors & Products Splunk
Splunk splunk

Wed, 21 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Description As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76528 are related to protection mechanism failure and are grouped under the Common Weakness Enumeration (CWE) CWE-693.
Title Protection Mechanism Failure in Splunk SOAR
Weaknesses CWE-693
References

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-11-02T21:07:56.931Z

Reserved: 2026-08-19T12:02:03.643Z

Link: CVE-2026-76528

cve-icon Vulnrichment

Updated: 2026-11-02T21:07:29.782Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-21T23:17:29.773

Modified: 2026-11-02T21:17:39.383

Link: CVE-2026-76528

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T00:00:20Z

Weaknesses
  • CWE-693

    Protection Mechanism Failure