CVE-2023-20194A vulnerability in the ERS API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying…
- 4.9MediumCVSS base score
- 0.72%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the ERS API of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device. 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 ERS API. 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 beyond the sphere of their intended access level, which would allow them to obtain sensitive information from the underlying operating system. Note: The ERS is not enabled by default. To verify the status of the ERS API in the Admin GUI, choose Administration > Settings > API Settings > API Service Settings.
Timeline
ID reserved
By cisco
- 11 months later
· 11 months later
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.72% · top 46% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Affected products
Cisco · Cisco Identity Services Engine Software
- affected 2.6.0
- affected 2.6.0 p1
- affected 2.6.0 p2
- affected 2.6.0 p3
- affected 2.6.0 p5
- affected 2.6.0 p6
- affected 2.6.0 p7
- affected 2.6.0 p8
- affected 2.6.0 p9
- affected 2.6.0 p10
- affected 2.6.0 p11
- affected 2.6.0 p12
- affected 2.7.0
- affected 2.7.0 p1
- affected 2.7.0 p2
- affected 2.7.0 p3
- affected 2.7.0 p4
- affected 2.7.0 p5
- affected 2.7.0 p6
- affected 2.7.0 p7
- affected 2.7.0 p9
- affected 3.0.0
- affected 3.0.0 p1
- affected 3.0.0 p2
- affected 3.0.0 p3
- affected 3.0.0 p4
- affected 3.0.0 p5
- affected 3.0.0 p6
- affected 3.0.0 p7
- affected 3.1.0
- affected 3.1.0 p1
- affected 3.1.0 p3
- affected 3.1.0 p4
- affected 3.1.0 p5
- affected 3.1.0 p6
- affected 3.1.0 p7
- affected 3.2.0
- affected 3.2.0 p1
- affected 3.2.0 p2
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
References
References1
- cisco-sa-ise-priv-esc-KJLp2Aw (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-24373 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-20194)Record last updated .