CVE-2023-20155
Quick assessment
Affected
Cisco Cisco Firepower Management Center
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 Firepower Management Center（FMC）是美国思科（Cisco）公司的新一代防火墙管理中心软件。 Cisco Firepower Management Center存在安全漏洞，该漏洞源于日志记录 API 存在漏洞，可能允许未经身份验证的远程攻击者导致设备无响应或触发意外重新加载。
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-20155
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 a logging API in Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to cause the device to become unresponsive or trigger an unexpected reload. This vulnerability could also allow an attacker with valid user credentials, but not Administrator privileges, to view a system log file that they would not normally have access to. This vulnerability is due to a lack of rate-limiting of requests that are sent to a specific API that is related to an FMC log. An attacker could exploit this vulnerability by sending a high rate of HTTP requests to the API. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the FMC CPU spiking to 100 percent utilization or to the device reloading. CPU utilization would return to normal if the attack traffic was stopped before an unexpected reload was triggered.
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
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Management Center 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Management Center（FMC）是美国思科（Cisco）公司的新一代防火墙管理中心软件。 Cisco Firepower Management Center存在安全漏洞，该漏洞源于日志记录 API 存在漏洞，可能允许未经身份验证的远程攻击者导致设备无响应或触发意外重新加载。
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 Firepower Management Center | 6.2.3 | - |
|
II. Public POCs for CVE-2023-20155
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-20155
请登录查看更多情报信息。
Vendor Advisories for CVE-2023-20155 (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-2023-20083 | 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-2023-20086 | 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-2023-20219 | 7.2 HIGH | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20220 | 7.2 HIGH | Cisco Firepower Management Center 安全漏洞 |
| CVE-2023-20042 | 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-2023-20245 | 5.8 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20270 | 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-2023-20071 | 5.8 MEDIUM | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2023-20255 | 5.3 MEDIUM | Cisco Meeting Server 安全漏洞 |
| CVE-2023-20247 | 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 Firepower Management Center
-
CVE-2025-20220
Cisco Secure Firewall Management Center和Cisco Secure Firewal -
CVE-2025-20306
Cisco Secure Firewall Management Center Software Command Inj -
CVE-2025-20302
Cisco Secure Firewall Management Center Software Authorizati -
CVE-2025-20301
Cisco Secure Firewall Management Center Software Authorizati -
CVE-2025-20265
Cisco Secure Firewall Management Center Software Radius Remo
Same vendor: Cisco
-
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization B -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
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
Same weakness: CWE-770
-
CVE-2026-94250
Apache APISIX: Batch response aggregation can exhaust worker -
CVE-2026-103261
Tornado before 6.5.9 Denial of Service via Query String -
CVE-2026-101881
OpenClaw Windows Node before 2026.7.1 Denial of Service -
CVE-2026-103472
restbed through 5.0.0 WebSocket Memory Exhaustion via Unboun -
CVE-2026-103471
restbed through 5.0.0 Denial of Service via Unbounded Header
V. Comments for CVE-2023-20155
No comments yet