RCE in Cisco Ios Xe Software
CVE-2023-20273
A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands with the privileges of root. This vulnerability is due to insufficient input validation. An attacker could expl…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.927 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xe Software — versions 16.1.1, 16.1.2, 16.1.3
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2023-20273?
- CVE-2023-20273 is a high-severity vulnerability in Cisco Ios Xe Software, classified under OS Command Injection. CVSS score: 7.2/10. Published 2023-10-24.
- How severe is CVE-2023-20273?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2023-20273 known to be exploited?
- Yes. CVE-2023-20273 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-10-23), indicating it is being actively exploited. 20 public proof-of-concept repositories are indexed.