high Known exploitedREV. 01
CVE-2023-20273Cisco routers — web interface commands that run as root
The web interface of Cisco's router software (IOS XE) does not check what it is given, so an account created through the companion flaw injects commands that the device executes with root privileges. Cisco names this as the step that wrote the implant.
Read the risk
THE VITAL STATS- CVSS score
- 7.2/ 10 CVSS v3.1
- EPSS probability
- 90% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2023-10-25
- Added to KEV
- 2023-10-23
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- privilege escalation
- MITRE ATT&CK
- T1059
- Severity
- high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attacker needsAn account on the device's web interface, which the paired flaw supplies.
Behind the card
3 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysec.cloudapps.cisco.comsec.cloudapps.cisco.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-24 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.