CVE-2026-20217— Cisco Secure Endpoint 缓冲区错误漏洞

ClamAV PESpin File Format Processing Out-of-Bounds Memory Corruption Vulnerability

A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in PESpin files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)

Cisco Secure Endpoint 缓冲区错误漏洞

Cisco Secure Endpoint是美国Cisco公司的一套集成了静态和动态恶意软件分析以及威胁情报于一体的终端应用程序。 Cisco Secure Endpoint存在缓冲区错误漏洞，该漏洞源于ClamAV的PESpin文件格式解析器边界检查不当，可能导致越界缓冲区写入，从而允许未经身份验证的远程攻击者通过提交特制的PESpin文件造成内存损坏，导致ClamAV扫描进程终止，造成拒绝服务。

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