October 29, 2026

CVE Watchtower

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CVE-2026-76423NVD

Vulnerability Summary

A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device.

This vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.
Severity Level
CRITICAL(10.0)
Published Date
Sep 16, 2026
Last Modified
Sep 17, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.58%Probability
Root Weakness (CWE)
CWE-290: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 10.0 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • Cisco Cisco Identity Services Engine Software >= 3.1.0
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p1
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p3
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p2
  • Cisco Cisco Identity Services Engine Software >= 3.2.0
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p4
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p5
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p1
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p6
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p2
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p7
  • Cisco Cisco Identity Services Engine Software >= 3.3.0
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p3
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p4
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p8
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p5
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p6
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p9
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 2
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 1
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 3
  • Cisco Cisco Identity Services Engine Software >= 3.4.0
  • Cisco Cisco Identity Services Engine Software >= 3.2.0 p7
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 4
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 1
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p10
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 5
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 6
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 2
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 7
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 3
  • Cisco Cisco Identity Services Engine Software >= 3.5.0
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 4
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 8
  • Cisco Cisco Identity Services Engine Software >= 3.2 Patch 8
  • Cisco Cisco Identity Services Engine Software >= 3.5 Patch 1
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 9
  • Cisco Cisco Identity Services Engine Software >= 3.2 Patch 9
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 5
  • Cisco Cisco Identity Services Engine Software >= 3.5 Patch 3
  • Cisco Cisco Identity Services Engine Software >= 3.5 Patch 2
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 10
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 11
  • Cisco Cisco Identity Services Engine Software >= 3.4 Patch 6
  • Cisco Cisco Identity Services Engine Software >= 3.2 Patch 10
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p72
  • Cisco Cisco Identity Services Engine Software >= 3.1.0 p11
  • Cisco Cisco Identity Services Engine Software >= 3.3 Patch 12
  • Cisco Cisco ISE Passive Identity Connector >= 3.2.0
  • Cisco Cisco ISE Passive Identity Connector >= 3.1.0
  • Cisco Cisco ISE Passive Identity Connector >= 3.3.0
  • Cisco Cisco ISE Passive Identity Connector >= 3.4.0
  • Cisco Cisco ISE Passive Identity Connector >= 3.5.0
Patched Versions
Not provided by cveorg for this CVE.
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References