CVE-2023-20255
Quick assessment
Affected
Cisco Cisco Meeting Server
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 Meeting Server（Acano Conferencing Server）是美国思科（Cisco）公司的一套包含音频、视频的会议服务器软件。 Cisco Meeting Server存在安全漏洞，该漏洞源于 Web Bridge 功能的 API 存在一个可能导致拒绝服务的漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-20255
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in an API of the Web Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP packets to an affected device. A successful exploit could allow the attacker to cause a partial availability condition, which could cause ongoing video calls to be dropped due to the invalid packets reaching the Web Bridge.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Meeting Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Meeting Server（Acano Conferencing Server）是美国思科（Cisco）公司的一套包含音频、视频的会议服务器软件。 Cisco Meeting Server存在安全漏洞，该漏洞源于 Web Bridge 功能的 API 存在一个可能导致拒绝服务的漏洞。
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 Meeting Server | N/A | - |
|
II. Public POCs for CVE-2023-20255
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2023-20255 (1)
Same Patch Batch · Cisco · 2023-11-01 · 32 CVEs total
| CVE-2023-20048 | 9.9 CRITICAL | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20175 | 8.8 HIGH | Cisco Identity Services Engine 安全漏洞 |
| CVE-2023-20244 | 8.6 HIGH | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20095 | 8.6 HIGH | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20083 | 8.6 HIGH | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20086 | 8.6 HIGH | Cisco Firepower Threat Defense和Cisco ASA 安全漏洞 |
| CVE-2023-20063 | 8.2 HIGH | Cisco Cisco Firepower Threat Defense Software and Cisco Firepower Management Center Code I |
| CVE-2023-20155 | 7.5 HIGH | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20220 | 7.2 HIGH | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20219 | 7.2 HIGH | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20042 | 6.8 MEDIUM | Cisco Firepower Threat Defense 跨站脚本漏洞 |
| CVE-2023-20114 | 6.5 MEDIUM | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20206 | 6.1 MEDIUM | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20264 | 6.1 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20170 | 6.0 MEDIUM | Cisco Identity Services Engine 安全漏洞 |
| CVE-2023-20071 | 5.8 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20246 | 5.8 MEDIUM | Cisco Catalys 和 Integrated Services Virtual Router 安全漏洞 |
| CVE-2023-20270 | 5.8 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20245 | 5.8 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20256 | 5.0 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
Showing top 20 of 32 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Meeting Server
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CVE-2021-40122
Cisco Meeting Server Call Bridge Denial of Service Vulnerabi -
CVE-2021-1524
Cisco Meeting Server API Denial of Service Vulnerability -
CVE-2020-3160
Cisco Meeting Server Extensible Messaging and Presence Proto -
CVE-2019-1623
Cisco Meeting Server CLI Command Injection Vulnerability -
CVE-2019-1676
Cisco Meeting Server SIP Processing Denial of Service Vulner
Same vendor: Cisco
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CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability
V. Comments for CVE-2023-20255
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