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CVE-2025-20360— Multiple Cisco Products Snort 3 MIME Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Cyber Vision
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 IOS XE和Cisco Secure Firewall Threat Defense都是美国思科（Cisco）公司的产品。Cisco IOS XE是一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。Cisco Secure Firewall Threat Defense是一个集成式防火墙平台。 Cisco多款产品存在安全漏洞，该漏洞源于解析HTTP标头的MIME字段时缺少完整错误检查，可能导致拒绝服务攻击。以下产品受到影

CVSS 5.8 · Medium EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-20360

Vulnerability Information
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Vulnerability Title
Multiple Cisco Products Snort 3 MIME Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a lack of complete error checking when the MIME fields of the HTTP header are parsed. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用不正确的长度值访问缓冲区
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE和Cisco Secure Firewall Threat Defense都是美国思科（Cisco）公司的产品。Cisco IOS XE是一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。Cisco Secure Firewall Threat Defense是一个集成式防火墙平台。 Cisco多款产品存在安全漏洞，该漏洞源于解析HTTP标头的MIME字段时缺少完整错误检查，可能导致拒绝服务攻击。以下产品受到影
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 Cyber Vision 3.0.0 -
Cisco Cisco Secure Firewall Threat Defense (FTD) Software 7.3.0 -

II. Public POCs for CVE-2025-20360

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III. Intelligence Information for CVE-2025-20360

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Same Patch Batch · Cisco · 2025-10-15 · 5 CVEs total

CVE-2025-20350 7.5 HIGH Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP
CVE-2025-20359 6.5 MEDIUM Multiple Cisco Products Snort 3 MIME Information Disclosure or Denial of Service Vulnerabi
CVE-2025-20351 6.1 MEDIUM Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP
CVE-2025-20329 4.9 MEDIUM Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulne

IV. Related Vulnerabilities

Same product: Cisco Cyber Vision
Same vendor: Cisco
Same weakness: CWE-805

V. Comments for CVE-2025-20360

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