Linux Distros 未修补的漏洞：CVE-2026-76957
high Nessus 插件 ID 338296
语言：
简介
Linux/Unix 主机上安装的一个或多个程序包存在漏洞，但供应商表示不会修补此漏洞。描述
Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。- 之前 2.8.4 的 libexpat 缺少带有自定义编码回调的处理程序调用深度跟踪。因此，可能会发生释放后使用。注意：这类似于 CVE-2026-50219、 和 CVE-2026-56131CVE-2026-56412。
(CVE-2026-76957)
请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。
解决方案
目前尚未有任何已知的解决方案。另见
插件详情
严重性: High
ID: 338296
文件名: unpatched_CVE_2026_76957.nasl
版本: 1.16
类型: Local
代理: unix
系列: Misc.
发布时间: 2026/8/20
最近更新时间: 2026/10/19
支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
风险信息
VPR
风险因素: Medium
分数: 4.9
百分位: 58.35
CVSS v2
风险因素: Medium
基本分数: 6.8
时间分数: 5.8
矢量: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 分数来源: CVE-2026-76957
CVSS v3
风险因素: High
基本分数: 7.8
时间分数: 7.1
矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
时间矢量: CVSS:3.0/E:U/RL:U/RC:C
漏洞信息
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:ayttm, p-cpe:/a:canonical:ubuntu_linux:cableswig, p-cpe:/a:canonical:ubuntu_linux:cadaver, p-cpe:/a:canonical:ubuntu_linux:coin3, p-cpe:/a:canonical:ubuntu_linux:gdcm, p-cpe:/a:canonical:ubuntu_linux:insighttoolkit4, p-cpe:/a:canonical:ubuntu_linux:libxmltok, p-cpe:/a:canonical:ubuntu_linux:matanza, p-cpe:/a:canonical:ubuntu_linux:smart, p-cpe:/a:canonical:ubuntu_linux:swish-e, p-cpe:/a:canonical:ubuntu_linux:tdom, p-cpe:/a:canonical:ubuntu_linux:vnc4, p-cpe:/a:canonical:ubuntu_linux:vtk, p-cpe:/a:canonical:ubuntu_linux:wbxml2, p-cpe:/a:canonical:ubuntu_linux:xmlrpc-c, p-cpe:/a:centos:centos:compat-expat1, p-cpe:/a:centos:centos:expat-devel, p-cpe:/a:centos:centos:expat-static, p-cpe:/a:centos:centos:expat, p-cpe:/a:centos:centos:firefox, p-cpe:/a:centos:centos:mingw-expat, p-cpe:/a:centos:centos:mingw32-expat, p-cpe:/a:centos:centos:mingw64-expat, p-cpe:/a:centos:centos:thunderbird, p-cpe:/a:centos:centos:xmlrpc-c-c%2b%2b, p-cpe:/a:centos:centos:xmlrpc-c-client, p-cpe:/a:centos:centos:xmlrpc-c-client%2b%2b, p-cpe:/a:centos:centos:xmlrpc-c-devel, p-cpe:/a:centos:centos:xmlrpc-c, p-cpe:/a:redhat:enterprise_linux:compat-expat1, p-cpe:/a:redhat:enterprise_linux:expat-devel, p-cpe:/a:redhat:enterprise_linux:expat-static, p-cpe:/a:redhat:enterprise_linux:expat, p-cpe:/a:redhat:enterprise_linux:firefox, p-cpe:/a:redhat:enterprise_linux:mingw-expat, p-cpe:/a:redhat:enterprise_linux:mingw32-expat, p-cpe:/a:redhat:enterprise_linux:mingw64-expat, p-cpe:/a:redhat:enterprise_linux:thunderbird, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-c%2b%2b, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-client, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-client%2b%2b, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c-devel, p-cpe:/a:redhat:enterprise_linux:xmlrpc-c
必需的 KB 项: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
易利用性: No known exploits are available
漏洞发布日期: 2026/8/20
参考资料信息
CVE: CVE-2026-76957