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TI-2023-06899 Aliases CVE-2023-20193GHSA-xh9q-385r-j657

OS command injection in Cisco Identity Services Engine Software

Priority LOW 31CWE-78Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

A vulnerability in the Embedded Service Router (ESR) of Cisco ISE could allow an authenticated, local attacker to read, write, or delete arbitrary files on the underlying operating system and escalate their privileges to root. To exploit this vulnerability, an attacker must have valid Administrator-level privileges on the affected device. This vulnerability is due to improper privilege management in the ESR console. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to elevate their privileges to root and read, write, or delete arbitrary files from the underlying operating system of the affected device. Note: The ESR is not enabled by default and must be licensed. To verify the status of the ESR in the Admin GUI, choose Administration > Settings > Protocols > IPSec.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00197 9th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Identity Services Engine Software2.6.0; 2.6.0 p1; 2.6.0 p2; 2.6.0 p3; 2.6.0 p5; 2.6.0 p6; 2.6.0 p7; 2.6.0 p8; 2.6.0 p9; 2.6.0 p10; 2.6.0 p11; 2.6.0 p12; 2.7.0; 2.7.0 p1; 2.7.0 p2; 2.7.0 p3; 2.7.0 p4; 2.7.0 p5; 2.7.0 p6; 2.7.0 p7; 2.7.0 p9; 3.0.0; 3.0.0 p1; 3.0.0 p2; 3.0.0 p3; 3.0.0 p4; 3.0.0 p5; 3.0.0 p6; 3.0.0 p7; 3.1.0; 3.1.0 p1; 3.1.0 p3; 3.1.0 p4; 3.1.0 p5; 3.1.0 p6; 3.1.0 p7; 3.2.0; 3.2.0 p1; 3.2.0 p2—No fix listedCNA
  • Cisco Identity Services Engine Software VendorCisco Affected 2.6.0; 2.6.0 p1; 2.6.0 p2; 2.6.0 p3; 2.6.0 p5; 2.6.0 p6; 2.6.0 p7; 2.6.0 p8; 2.6.0 p9; 2.6.0 p10; 2.6.0 p11; 2.6.0 p12; 2.7.0; 2.7.0 p1; 2.7.0 p2; 2.7.0 p3; 2.7.0 p4; 2.7.0 p5; 2.7.0 p6; 2.7.0 p7; 2.7.0 p9; 3.0.0; 3.0.0 p1; 3.0.0 p2; 3.0.0 p3; 3.0.0 p4; 3.0.0 p5; 3.0.0 p6; 3.0.0 p7; 3.1.0; 3.1.0 p1; 3.1.0 p3; 3.1.0 p4; 3.1.0 p5; 3.1.0 p6; 3.1.0 p7; 3.2.0; 3.2.0 p1; 3.2.0 p2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*up to 2.7; 3.0.0 – 3.3.0VulnerableCisco
  • cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:* Versions up to 2.7; 3.0.0 – 3.3.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20193
  2. 2026-10-03 Alias added: GHSA-xh9q-385r-j657

References

Advisory 1

  • TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-14632 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-14578 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-14579 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2022-05522 OS command injection in Cisco Identity Services Engine Software CVSS 3.1HIGH 8.8
See all 197 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences