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CVE-2025-20127— Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞

一分钟漏洞结论

影响对象
Cisco Cisco Adaptive Security Appliance (ASA) Software
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense都是美国思科（Cisco）公司的产品。Cisco Secure Firewall Adaptive Security Appliance是一个企业级防火墙软件。Cisco Secure Firewall Threat Defense是一个集成式防火墙平台。 Cisco Secure Firewall Adaptive Security

CVSS 7.7 · High EPSS 0.66% · P50

可能的 ATT&CK 技术 1 AI

T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2025-20127 基础信息

漏洞信息
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Vulnerability Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the TLS 1.3 implementation for a specific cipher for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software for Cisco Firepower 3100 and 4200 Series devices could allow an authenticated, remote attacker to consume resources that are associated with incoming TLS 1.3 connections, which eventually could cause the device to stop accepting any new SSL/TLS or VPN requests. This vulnerability is due to the implementation of the TLS 1.3 Cipher TLS_CHACHA20_POLY1305_SHA256. An attacker could exploit this vulnerability by sending a large number of TLS 1.3 connections with the specific TLS 1.3 Cipher TLS_CHACHA20_POLY1305_SHA256. A successful exploit could allow the attacker to cause a denial of service (DoS) condition where no new incoming encrypted connections are accepted. The device must be reloaded to clear this condition. Note: These incoming TLS 1.3 connections include both data traffic and user-management traffic. After the device is in the vulnerable state, no new encrypted connections can be accepted.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense都是美国思科（Cisco）公司的产品。Cisco Secure Firewall Adaptive Security Appliance是一个企业级防火墙软件。Cisco Secure Firewall Threat Defense是一个集成式防火墙平台。 Cisco Secure Firewall Adaptive Security
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
Cisco Cisco Adaptive Security Appliance (ASA) Software 9.20.1 -
Cisco Cisco Firepower Threat Defense Software 7.4.0 -

二、漏洞 CVE-2025-20127 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2025-20127 的情报信息

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CVE-2025-20127 厂商安全公告 (1)

同批安全公告 · Cisco · 2025-08-14 · 共 29 条

CVE-2025-20265 10.0 CRITICAL Cisco Secure Firewall Management Center 注入漏洞
CVE-2025-20133 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20134 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 资源管
CVE-2025-20136 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20263 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20253 8.6 HIGH Cisco多款产品 安全漏洞
CVE-2025-20217 8.6 HIGH Cisco Secure Firewall Threat Defense 安全漏洞
CVE-2025-20243 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20239 8.6 HIGH Cisco多款产品 安全漏洞
CVE-2025-20222 8.6 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20148 8.5 HIGH Cisco Secure Firewall Management Center 输入验证错误漏洞
CVE-2025-20251 8.5 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20244 7.7 HIGH Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20301 6.5 MEDIUM Cisco Secure Firewall Management Center 安全漏洞
CVE-2025-20235 6.1 MEDIUM Cisco Secure Firewall Management Center 跨站脚本漏洞
CVE-2025-20237 6.0 MEDIUM Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20238 6.0 MEDIUM Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏
CVE-2025-20220 6.0 MEDIUM Cisco Secure Firewall Management Center和Cisco Secure Firewall Threat Defense 操作系统命令注入漏洞
CVE-2025-20225 5.8 MEDIUM Cisco多款产品 安全漏洞
CVE-2025-20224 5.8 MEDIUM Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏

显示前 20 条，共 29 条。 查看全部 → →

IV. Related Vulnerabilities

Same product: Cisco Adaptive Security Appliance (ASA) Software
Same vendor: Cisco
Same weakness: CWE-404

V. Comments for CVE-2025-20127

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