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CWE-416 释放后使用 类漏洞列表 4331

CWE-416 释放后使用 类弱点 4331 条 CVE 漏洞汇总,含 AI 中文分析。

CWE-416 释放后使用是一种内存安全漏洞,指程序在释放内存后仍引用该内存区域。攻击者常利用此缺陷,通过重新分配内存并控制其内容,诱导程序执行恶意代码或读取敏感数据,从而引发远程代码执行或信息泄露。开发者应避免此类风险,确保在指针置空前彻底解除引用,采用智能指针等自动内存管理机制,并严格验证内存生命周期,防止悬空指针操作。

MITRE CWE 官方描述
CWE:CWE-416 Use After Free 英文:产品在内存被释放后重新使用或引用该内存。在此之后,该内存可能会被重新分配并保存到另一个指针中,而原始指针则指向新分配内存中的某个位置。由于内存“属于”操作新指针的代码,因此使用原始指针的任何操作均不再有效。
常见影响 (4)
Integrity Modify Memory
The use of previously freed memory may corrupt valid data, if the memory area in question has been allocated and used properly elsewhere.
Availability DoS: Crash, Exit, or Restart
If chunk consolidation occurs after the use of previously freed data, the process may crash when invalid data is used as chunk information.
Confidentiality Read Memory
Read operations on freed memory can sometimes leak sensitive information instead of causing a crash
Integrity, Confidentiality, Availability Execute Unauthorized Code or Commands
If malicious data is entered before chunk consolidation can take place, it may be possible to take advantage of a write-what-where primitive to execute arbitrary code. If the newly allocated data happens to hold a class, in C++ for example, various function pointers may be scattered within the heap …
缓解措施 (2)
Architecture and Design Choose a language that provides automatic memory management.
Implementation When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
Effectiveness: Defense in Depth
代码示例 (2)
The following example demonstrates the weakness.
#include <stdio.h> #include <unistd.h> #define BUFSIZER1 512 #define BUFSIZER2 ((BUFSIZER1/2) - 8) int main(int argc, char **argv) { char *buf1R1; char *buf2R1; char *buf2R2; char *buf3R2; buf1R1 = (char *) malloc(BUFSIZER1); buf2R1 = (char *) malloc(BUFSIZER1); free(buf2R1); buf2R2 = (char *) malloc(BUFSIZER2); buf3R2 = (char *) malloc(BUFSIZER2); strncpy(buf2R1, argv[1], BUFSIZER1-1); free(buf1R1); free(buf2R2); free(buf3R2); }
Bad · C
The following code illustrates a use after free error:
char* ptr = (char*)malloc (SIZE); if (err) { abrt = 1; free(ptr); } ... if (abrt) { logError("operation aborted before commit", ptr); }
Bad · C
CVE ID 标题 CVSS 风险等级 Published
CVE-2026-87712 Microsoft Windows QoS调度驱动程序提权漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-87713 Windows蓝牙端口驱动远程代码执行漏洞 — Windows 10 Version 1607 7.5 High 2026-10-13
CVE-2026-87691 Windows Management Services 权限提升漏洞 — Windows 11 version 23H2 7.8 High 2026-10-13
CVE-2026-85945 Windows 内核权限提升漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85926 Windows SSTP远程代码执行漏洞 — Windows 10 Version 1607 8.1 High 2026-10-13
CVE-2026-85933 Windows Print Spooler 组件提权漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85930 Windows 图像采集权限提升漏洞 — Windows 10 Version 21H2 7.0 High 2026-10-13
CVE-2026-85914 Windows Embedded Mode Service 提权漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-85934 Windows AppX Deployment Service 权限提升漏洞 — Windows 10 Version 1809 7.0 High 2026-10-13
CVE-2026-83710 Windows设备关联服务提权漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-70164 Windows TCP/IP 提权漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-70187 Windows远程桌面服务远程代码执行漏洞 — Windows Server 2012 8.1 High 2026-10-13
CVE-2026-88124 Windows Installer 提权漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-88161 Windows本地安全机构特权提升漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-88173 Windows BITS远程代码执行漏洞 — Windows 10 Version 1607 8.1 High 2026-10-13
CVE-2026-88080 Windows Installer 权限提升漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-87708 Windows Installer 权限提升漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-85918 Windows UPnP设备主机权限提升漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-85868 Windows Common Log File System Driver 提权漏洞 — Windows 10 Version 1607 7.0 High 2026-10-13
CVE-2026-85863 剪贴板用户服务提权漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85861 剪贴板用户服务权限提升漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85860 Windows消息队列服务权限提升漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85846 Web Account Manager 权限提升漏洞 — Windows 10 Version 1809 7.0 High 2026-10-13
CVE-2026-85855 Windows DWM 组件权限提升漏洞 — Windows 11 Version 24H2 7.0 High 2026-10-13
CVE-2026-85851 Windows SmartScreen 权限提升漏洞 — Windows 11 version 23H2 7.8 High 2026-10-13
CVE-2026-85854 Windows DWM 组件提权漏洞 — Windows 10 Version 1809 7.0 High 2026-10-13
CVE-2026-85836 Windows 内核权限提升漏洞 — Windows 11 Version 24H2 7.8 High 2026-10-13
CVE-2026-85833 Windows MDM 提权漏洞 — Windows 10 Version 1607 7.8 High 2026-10-13
CVE-2026-85823 Windows Composite Image File System 提权漏洞 — Windows 11 Version 24H2 7.0 High 2026-10-13
CVE-2026-85824 Windows 组合图像文件系统提权漏洞 — Windows 10 Version 21H2 7.0 High 2026-10-13

CWE-416(释放后使用) 是常见的弱点类别,本平台收录该类弱点关联的 4331 条 CVE 漏洞。