Cyber Resilience

CVE-2023-20116

MediumDDoS

Published: 28 June 2023

Published
28 June 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
EPSS Score 0.0050 66.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-20116 is a medium-severity Infinite Loop (CWE-835) vulnerability in Cisco Unified Communications Manager. Its CVSS base score is 6.8 (Medium).

Operationally, ranked in the top 33.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability in the Administrative XML Web Service (AXL) API of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to cause a denial of service…

more

(DoS) condition on an affected device. This vulnerability is due to insufficient validation of user-supplied input to the web UI of the Self Care Portal. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

CWE(s)
CWE-835

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cisco
unified communications manager
11.5\(1.10000.6\), 12.0\(1.10000.10\), 12.5\(1.10000.22\), 14.0\(1.10000.20\)

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CP-7 Alternate Processing Site
addresses: CWE-835

Enables transfer to alternate site if an infinite loop at the primary renders processing unavailable.

SC-5 Denial-of-service Protection
addresses: CWE-835

Detects and mitigates infinite loops that produce sustained resource consumption.

References