Auth bypass in Cisco Ata 191
CVE-2024-20420
A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an authenticated, remote attacker with low privileges to run commands as an Admin user. This vulnerability is due to incorrect authorization verification by the HTTP server. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface. A successful exploit could allow the attacker to run commands as the Admin user.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (26.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cisco Ata 191
- Cisco Ata 191 Firmware
- Cisco Ata 192
- Cisco Ata 192 Firmware
- Cisco Analog Telephone Adaptor (Ata) Software — versions 12.0.1 SR2, 11.1.0, 12.0.1 SR1
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-20420?
- CVE-2024-20420 is a medium-severity vulnerability in Cisco Ata 191, classified under CWE-250. CVSS score: 5.4/10. Published 2024-10-16.
- How severe is CVE-2024-20420?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2024-20420 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.