8.6

CVE-2024-20375: cisco cisco unified communications manager Out-of-bounds Write

CVSS: 8.6v3.1HighAnalyzed
Published 21-08-2024Last modified 23-08-2024
Open JSON

Vulnerability summary

CVE-2024-20375 is a high (CVSS 8.6) Out-of-bounds Write vulnerability in cisco cisco unified communications manager. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.74%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-08-2024
    PublishedVulnerability first disclosed.
  2. 23-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the SIP call processing function of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a crafted SIP message to an affected Cisco Unified CM or Cisco Unified CM SME device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition that interrupts the communications of reliant voice and video devices.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.74% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco unified communications manager12.0(1)SU1 | 12.0(1)SU2 | 12.0(1)SU3 | 12.0(1)SU4 | 12.0(1)SU5 | 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 | 12.5(1)SU7 | 12.5(1)SU7a | 12.5(1)SU8 | 12.5(1)SU8a | 14 | 14SU1 | 14SU2 | 14SU3 | 15
  • unified_communications_manager12.0\(1\)su1 | 12.0\(1\)su2 | 12.0\(1\)su3 | 12.0\(1\)su4 | 12.0\(1\)su5 | 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 | 12.5\(1\)su7 | 12.5\(1\)su7a | 12.5.1su8 | 12.5\(1\)su8a

1 vendor · 2 products

References

1 links