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No exploitation reportedAwaiting NVD analysis

CVE-2026-76528

Protection Mechanism Failure in Splunk SOAR

No exploitation reported by the sources we read.

  • Published2026-10-21
  • WeaknessCWE-693

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-10-2122:52CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-02 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-76528?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-76528?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Products declared by the CNA

As cisco, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Splunk SOAR
    Affected
    • < 8.7.0fixed in 8.7.0custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-21

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-76528 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-10-21
Last Modified
2026-11-02
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-fq28-h6jp-7ffm

Frequently asked questions

What is CVE-2026-76528?

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.

Is CVE-2026-76528 actively exploited?

Active exploitation of CVE-2026-76528 has not been confirmed. Its EPSS score was 0.1% on 2026-11-02, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-76528?

CVE-2026-76528 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record