CVE-2023-20194
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 42% of all known CVEs.
References
Related Vulnerabilities
Other CWE-268 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-49741 | High | 7.4 | 3.5% | - | Fix |
| CVE-2019-3844 | High | 7.8 | 0.9% | - | Fix |
| CVE-2024-1250 | Medium | 6.5 | 0.5% | - | Fix |
| CVE-2024-1299 | Medium | 6.5 | 0.5% | - | Fix |
| CVE-2022-1003 | Low | 3.3 | 0.5% | - | Fix |
| CVE-2024-4877 | High | 8.8 | 0.4% | - | Fix |
Common questions
How do I fix CVE-2023-20194?
No published fix for CVE-2023-20194 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2023-20194 being actively exploited?
Not that we know of. CVE-2023-20194 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.53% is the estimated probability that it will be exploited in the next 30 days. That is higher than 42% of all scored CVEs.
How severe is CVE-2023-20194?
CVE-2023-20194 has a CVSS v3 base score of 4.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.