Cisco Identity Services Engine File Download Vulnerability
Priority LOW 30CWE-266Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-266.
Summary
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker with administrative read-only privileges to download files that should be restricted. This vulnerability is due to incorrect permissions settings on an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request to the device. A successful exploit could allow the attacker to download files that should be restricted.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00796 56th 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
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software | all versions | — | No fix listed | CNA |
- Cisco Identity Services Engine Software VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:* | up to 2.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:-:*:*:*:*:*:* | 2.6.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch1:*:*:*:*:*:* | 2.6.0 patch1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch2:*:*:*:*:*:* | 2.6.0 patch2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch3:*:*:*:*:*:* | 2.6.0 patch3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch5:*:*:*:*:*:* | 2.6.0 patch5 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch6:*:*:*:*:*:* | 2.6.0 patch6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch7:*:*:*:*:*:* | 2.6.0 patch7 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch8:*:*:*:*:*:* | 2.6.0 patch8 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch9:*:*:*:*:*:* | 2.6.0 patch9 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:* Versions up to 2.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:-:*:*:*:*:*:* Versions 2.6.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch1:*:*:*:*:*:* Versions 2.6.0 patch1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch2:*:*:*:*:*:* Versions 2.6.0 patch2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch3:*:*:*:*:*:* Versions 2.6.0 patch3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch5:*:*:*:*:*:* Versions 2.6.0 patch5 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch6:*:*:*:*:*:* Versions 2.6.0 patch6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch7:*:*:*:*:*:* Versions 2.6.0 patch7 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch8:*:*:*:*:*:* Versions 2.6.0 patch8 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch9:*:*:*:*:*:* Versions 2.6.0 patch9 Vulnerable ·Cisco
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:identity_services_engine:2.7:*:*:*:*:*:*:* | 2.7 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7\(0.207\):*:*:*:*:*:*:* | 2.7(0.207) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7\(0.356\):*:*:*:*:*:*:* | 2.7(0.356) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7\(0.356\):-:*:*:*:*:*:* | 2.7(0.356) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7\(0.903\):*:*:*:*:*:*:* | 2.7(0.903) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7.0:-:*:*:*:*:*:* | 2.7.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch1:*:*:*:*:*:* | 2.7.0 patch1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch2:*:*:*:*:*:* | 2.7.0 patch2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch3:*:*:*:*:*:* | 2.7.0 patch3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch4:*:*:*:*:*:* | 2.7.0 patch4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:3.0\(0.458\):*:*:*:*:*:*:* | 3.0(0.458) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:3.0.0:-:*:*:*:*:*:* | 3.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch1:*:*:*:*:*:* | 3.0.0 patch1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch2:*:*:*:*:*:* | 3.0.0 patch2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch3:*:*:*:*:*:* | 3.0.0 patch3 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:identity_services_engine:2.7:*:*:*:*:*:*:* Versions 2.7 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7\(0.207\):*:*:*:*:*:*:* Versions 2.7(0.207) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7\(0.356\):*:*:*:*:*:*:* Versions 2.7(0.356) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7\(0.356\):-:*:*:*:*:*:* Versions 2.7(0.356) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7\(0.903\):*:*:*:*:*:*:* Versions 2.7(0.903) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:-:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch1:*:*:*:*:*:* Versions 2.7.0 patch1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch2:*:*:*:*:*:* Versions 2.7.0 patch2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch3:*:*:*:*:*:* Versions 2.7.0 patch3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.7.0:patch4:*:*:*:*:*:* Versions 2.7.0 patch4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:3.0\(0.458\):*:*:*:*:*:*:* Versions 3.0(0.458) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:-:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch1:*:*:*:*:*:* Versions 3.0.0 patch1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch2:*:*:*:*:*:* Versions 3.0.0 patch2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:3.0.0:patch3:*:*:*:*:*:* Versions 3.0.0 patch3 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-40123
- 2026-10-03 Alias added: GHSA-vf6w-26pr-6vvq
References
More Cisco Identity Services Engine vulnerabilities
- 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
Sources
- CVE-2021-40123 · CVE Program
- CVE-2021-40123 · NVD
- FIRST EPSS
- GHSA-vf6w-26pr-6vvq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences