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5.3
CVE-2026-76447
Cisco · Cisco Identity Services Engine Software

Cisco Identity Services Engine Certificate Reload Vulnerability

Description

A vulnerability in the Online Certificate Status Protocol (OCSP) responder of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to cause an administrative reload of the OCSP responder certificate and key material. This vulnerability is due to missing authentication on a function of the OCSP responder. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to cause the OCSP responder to reload certificate and key material on demand.

Affected Products

VendorProductVersions
CiscoCisco Identity Services Engine Software3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p2, 3.2.0, 3.1.0 p4, 3.1.0 p5, 3.2.0 p1, 3.1.0 p6, 3.2.0 p2, 3.1.0 p7, 3.3.0, 3.2.0 p3, 3.2.0 p4, 3.1.0 p8, 3.2.0 p5, 3.2.0 p6, 3.1.0 p9, 3.3 Patch 2, 3.3 Patch 1, 3.3 Patch 3, 3.4.0, 3.2.0 p7, 3.3 Patch 4, 3.4 Patch 1, 3.1.0 p10, 3.3 Patch 5, 3.3 Patch 6, 3.4 Patch 2, 3.3 Patch 7, 3.4 Patch 3, 3.5.0, 3.4 Patch 4, 3.3 Patch 8, 3.2 Patch 8, 3.5 Patch 1, 3.3 Patch 9, 3.2 Patch 9, 3.4 Patch 5, 3.5 Patch 3, 3.5 Patch 2, 3.3 Patch 10, 3.3 Patch 11, 3.4 Patch 6, 3.2 Patch 10, 3.1.0 p72, 3.1.0 p11, 3.2.0, 3.1.0, 3.3.0, 3.4.0, 3.5.0

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
ciscisco ise passive identity connectormitre_affected90%
cisidentity services engine (ise)cert_advisory90%
ciscisco secure firewall management centercert_advisory90%

References

  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4

Related News (3 articles)

Tier B
BSI Advisories10d ago
[NEU] [hoch] Cisco ISE und ISE-PIC: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
BSI Advisories10d ago
[NEU] [hoch] Cisco Secure Firewall Management Center: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB11d ago
CVE-2026-76447 | Cisco Identity Services Engine Online Certificate Status Protocol Responder missing authentication
→ No new info (linked only)

Discussion (0)

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CVSS 3.15.3 MEDIUM
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA KEV❌ No
Actively exploited❌ No
CWECWE-306
PublishedSep 16, 2026
Last enriched11d ago
Trending Score13
Source articles3
Independent2
Info Completeness8/14
Missing: epss, kev, exploit, patch, iocs, mitre_attack

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Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
Sep 16, 2026
Discovered by ZDM
Sep 16, 2026