CVE-2023-20108
Quick assessment
Affected
Cisco Cisco Unified Communications Manager IM and Presence Service
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager IM & Presence Service存在安全漏洞，该漏洞源于没有正确验证用户提供的输入，导致存在拒绝服务漏洞。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-20108
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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 temporary service outage for all Cisco Unified CM IM&P users who are attempting to authenticate to the service, resulting in a denial of service (DoS) condition.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted login message to the affected device. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing new users from successfully authenticating. Exploitation of this vulnerability does not impact Cisco Unified CM IM&P users who were authenticated prior to an attack.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Unified Communications Manager 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager IM & Presence Service存在安全漏洞，该漏洞源于没有正确验证用户提供的输入，导致存在拒绝服务漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Unified Communications Manager IM and Presence Service | 10.5(1) | - |
|
II. Public POCs for CVE-2023-20108
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-20108
请登录查看更多情报信息。
Vendor Advisories for CVE-2023-20108 (1)
Same Patch Batch · Cisco · 2023-06-28 · 12 CVEs total
| CVE-2023-20192 | 9.6 CRITICAL | Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escala |
| CVE-2023-20105 | 9.6 CRITICAL | 多款Cisco产品 安全漏洞 |
| CVE-2023-20006 | 8.6 HIGH | 多款Cisco产品 安全漏洞 |
| CVE-2023-20178 | 7.8 HIGH | Cisco AnyConnect Secure Mobility Client for Windows 安全漏洞 |
| CVE-2023-20116 | 6.8 MEDIUM | Cisco Unified Communications Manager 安全漏洞 |
| CVE-2023-20199 | 6.2 MEDIUM | Cisco Duo Two-Factor Authentication for macOS Authentication Bypass Vulnerability |
| CVE-2023-20119 | 6.1 MEDIUM | 多款Cisco产品 跨站脚本漏洞 |
| CVE-2023-20120 | 5.4 MEDIUM | Cisco Secure Email Gateway, Cisco Secure Email and Web Manager, and Cisco Secure Web Appli |
| CVE-2023-20028 | 5.4 MEDIUM | Cisco Secure Email Gateway, Cisco Secure Email and Web Manager, and Cisco Secure Web Appli |
| CVE-2023-20188 | 4.8 MEDIUM | 多款Cisco产品 跨站脚本漏洞 |
| CVE-2023-20136 | 4.3 MEDIUM | Cisco Secure Workload 安全漏洞 |
IV. Related Vulnerabilities
-
CVE-2025-20330
Cisco Unified Communications Manager IM and Presence Cross-S -
CVE-2024-20457
Cisco Unified Communications Manager IM & Presence Service I -
CVE-2022-20786
Cisco Unified Communications Manager IM & Presence Service S -
CVE-2021-1363
Cisco Unified Communications Manager IM & Presence Service S -
CVE-2021-1365
Cisco Unified Communications Manager IM & Presence Service S
Same vendor: Cisco
-
CVE-2026-76472
Cisco Meraki Security Hardening Release October 2026 - Impro -
CVE-2026-76467
Cisco Meraki Software Hardening Release - Resource Lifetime -
CVE-2026-76470
Cisco Meraki Hardening Release - Incorrect Calculation Vulne -
CVE-2026-76469
Cisco Meraki Security Hardening Release: October 2026 Insuff -
CVE-2026-76468
Cisco Meraki Hardening Release - Input Validation Vulnerabil
Same weakness: CWE-789
-
CVE-2026-97853
Unbounded allocation in decimal Decimal.round/3 driven by th -
CVE-2026-108106
Xerial snappy-java before 1.1.10.9 Unbounded Memory Allocati -
CVE-2026-107390
music-metadata: MP4 parser allows memory exhaustion via over -
CVE-2026-107389
music-metadata: EBML parser trusts element lengths, allowing -
CVE-2026-107388
music-metadata: ID3v2 tag size not validated before allocati
V. Comments for CVE-2023-20108
No comments yet