October 29, 2026

CVE Watchtower

← Back to CVE List

CVE-2026-20130NVD

Vulnerability Summary

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC), engineering teams have 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-2026-20130 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74.
Severity Level
CRITICAL(10.0)
Published Date
Sep 16, 2026
Last Modified
Sep 18, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.40%Probability
Root Weakness (CWE)
CWE-74: 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
AvailabilityHigh

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 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.
🎁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.
🎁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