CVE-2023-20198 — Cisco IOS XE Web UI Privilege Escalation Vulnerability

CVE-2023-20198 (Cisco IOS XE Web UI) is in the CISA Known Exploited Vulnerabilities catalog since 2023-10-16. Cisco IOS XE Web UI contains a privilege escalation vulnerability in the web user interface that could allow… See the required fix, due date and advisories.

Exploitation status

CVE-2023-20198 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2023-10-16. Cisco IOS XE Web UI contains a privilege escalation vulnerability in the web user interface that could allow a remote, unauthenticated attacker to create an account with privilege level 15 access. The attacker can then use that account to gain control of the affected device.

Advisory facts

Vendor or project
Cisco
Affected product
IOS XE Web UI
Added to CISA KEV
2023-10-16
US federal remediation due date
2023-10-20
Ransomware association
Unknown
EPSS score
—
Weakness (CWE)
CWE-420

Remediation: the required action

Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.