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01 Record

CVE-2023-20108

A vulnerability in the XCP Authentication Service of the Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to cause a

HighPUBLISHEDCNA: cisco
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

A vulnerability in the XCP Authentication Service of the Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to cause a

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.93% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 60.3% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-06-28 00:00Z3 YR AGO
Last updated
2024-08-02 08:57Z2 YR AGO
Reserved
2022-10-27
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-789Memory Allocation with Excessive Size ValueVariant
  • CWE-770Allocation of Resources Without Limits or ThrottlingBase
Data version
5.1
Document digest
8cc2f301fa87124ade1e76e58bf84d2a992387fbbde37655ef8c5c439cb3134a

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Unified Communications Manager IM and Presence Service10.5(1), 10.5(2), 10.5(2a), 10.5(2b), 10.5(2)SU3, 10.5(2)SU2a, 10.5(2)SU4a, 10.5(2)SU4, 10.5(1)SU3, 10.5(1)SU1, 10.5(2)SU1, 10.5(2)SU2, 10.5(1)SU2, 11.5(1), 11.5(1)SU1, 11.5(1)SU2, 11.5(1)SU3, 11.5(1)SU3a, 11.5(1)SU4, 11.5(1)SU5, 11.5(1)SU5a, 11.5(1)SU6, 11.5(1)SU7, 11.5(1)SU8, 11.5(1)SU9, 11.5(1)SU10, 11.5(1)SU11, 11.0(1), 11.0(1)SU1, 12.5(1), 12.5(1)SU1, 12.5(1)SU2, 12.5(1)SU3, 12.5(1)SU4, 12.5(1)SU5, 12.5(1)SU6, 14, 14SU1, 14SU2, 14SU2a, 10.0(1), 10.0(1)SU1, 10.0(1)SU2—

06 References