Auth bypass in Cisco Unified Contact Center Express
CVE-2020-3267
A vulnerability in the API subsystem of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to change the availability state of any agent. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by authenticating to an affected system with valid agent credentials and performing a specific API call with crafted input. A successful exploit could allow the attacker to change the availability state of an agent, potentially causing a denial of service condition.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uccx-api… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3267?
- CVE-2020-3267 is a high-severity vulnerability in Cisco Unified Contact Center Express, classified under Improper Authorization. CVSS score: 7.1/10. Published 2020-06-03.
- How severe is CVE-2020-3267?
- High severity. CVSS v3 base score is 7.1 out of 10.