What is CVE-2020-3280?

CVE-2020-3280 is a critical-severity vulnerability in Cisco Unified Contact Center Express, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-05-22.

How severe is CVE-2020-3280?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-3280 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Cisco Unified Contact Center Express

CVE-2020-3280

A vulnerability in the Java Remote Management Interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary code as the root user on an affected device.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.069 (93.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cisco Unified Contact Center Express — versions n/a
Cisco Unified_contact_center_express

Weakness classification (CWE)

Public proof-of-concept exploits

PalindromeLabs/Java-Deserialization-CVEs

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2020-3280?: CVE-2020-3280 is a critical-severity vulnerability in Cisco Unified Contact Center Express, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-05-22.
How severe is CVE-2020-3280?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-3280 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.