CVE-2026-20300
HIGHDescription
A vulnerability in Cisco ISE could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read or modify data in the underlying database.
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:L/UI:N/S:U/C:L/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 22% of all known CVEs.
References
Related Vulnerabilities
Other CWE-89 (SQL Injection) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2014-3704 | High | 7.5 | 100% | - | Fix |
| CVE-2015-7297 | High | 7.5 | 100% | - | - |
| CVE-2024-29824 | High | 8.8 | 100% | KEV | Fix |
| CVE-2023-34362 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2019-7481 | High | 7.5 | 100% | KEV + Ransom | Fix |
| CVE-2024-29826 | High | 8.8 | 100% | - | Fix |
Common questions
How do I fix CVE-2026-20300?
No published fix for CVE-2026-20300 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-20300 being actively exploited?
Not that we know of. CVE-2026-20300 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.29% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.
How severe is CVE-2026-20300?
CVE-2026-20300 has a CVSS v3 base score of 7.1, rated high. 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 2026-09-18.