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CWE-476 空指针解引用 类漏洞列表 1557

CWE-476 空指针解引用 类弱点 1557 条 CVE 漏洞汇总,含 AI 中文分析。

CWE-476空指针解引用属于内存安全类漏洞,指程序在指针为NULL时仍尝试访问其指向的内存。攻击者通常通过构造特定输入触发空指针,导致程序崩溃引发拒绝服务,或在特定架构下利用该异常改变执行流以执行恶意代码。开发者应避免在解引用前未验证指针有效性,通过添加空值检查、使用静态分析工具检测潜在风险,并确保代码逻辑能妥善处理无效指针情况,从而从根本上消除隐患。

MITRE CWE 官方描述
CWE:CWE-476 NULL Pointer Dereference(空指针解引用) 英文:The product dereferences a pointer that it expects to be valid but is NULL. 译文:产品解引用了一个它预期为有效但实际上为 NULL 的指针。
常见影响 (2)
Availability DoS: Crash, Exit, or Restart
NULL pointer dereferences usually result in the failure of the process unless exception handling (on some platforms) is available and implemented. Even when exception handling is being used, it can still be very difficult to return the software to a safe state of operation.
Integrity, Confidentiality Execute Unauthorized Code or Commands, Read Memory, Modify Memory
In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution.
缓解措施 (5)
Implementation For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Requirements Select a programming language that is not susceptible to these issues.
Implementation Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Effectiveness: Moderate
Architecture and Design Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Implementation Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
代码示例 (2)
This example takes an IP address from a user, verifies that it is well formed and then looks up the hostname and copies it into a buffer.
void host_lookup(char *user_supplied_addr){ struct hostent *hp; in_addr_t *addr; char hostname[64]; in_addr_t inet_addr(const char *cp); /*routine that ensures user_supplied_addr is in the right format for conversion */ validate_addr_form(user_supplied_addr); addr = inet_addr(user_supplied_addr); hp = gethostbyaddr( addr, sizeof(struct in_addr), AF_INET); strcpy(hostname, hp->h_name); }
Bad · C
In the following code, the programmer assumes that the system always has a property named "cmd" defined. If an attacker can control the program's environment so that "cmd" is not defined, the program throws a NULL pointer exception when it attempts to call the trim() method.
String cmd = System.getProperty("cmd"); cmd = cmd.trim();
Bad · Java
CVE ID 标题 CVSS 风险等级 Published
CVE-2026-101949 Junos OS/BGP流监控导致rpd崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101961 Junos OS/OS Evolved BGP ECMP导入策略导致rpd崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-102060 Junos OS MX/ACX系列组播合法拦截路由守护崩溃漏洞 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102040 Junos OS 路由守护进程崩溃漏洞 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102039 Junos OS/Evolved GMPLS EVPL动态传输路由进程拒绝服务漏洞 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102029 Junos OS 拒绝服务漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-102028 Junos OS/Evolved VPLS自动发现导致rpd崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-102021 Junos OS 和 Evolved RSVP畸形包导致rpd崩溃 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102018 Junos OS/PIM双向DF选举消息导致路由服务中断漏洞 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102013 Junos OS/OS Evolved na-grpcd 崩溃漏洞 — Junos OS 4.4 Medium 2026-10-14
CVE-2026-101941 Junos OS 路由策略解析地图处理与事件追踪启用时 rpd 崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101940 Junos OS 路由守护进程崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101939 Junos OS 路由表引用导致路由守护进程拒绝服务漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101988 Junos OS LDP开启时rpd崩溃漏洞 — Junos OS 6.5 Medium 2026-10-14
CVE-2026-102086 Junos OS SRX系列SecIntel/DGA会话流量崩溃漏洞 — Junos OS 5.9 Medium 2026-10-14
CVE-2026-101948 Junos OS/Evolved BGP FlowSpec策略导入导致rpd崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101977 Junos OS BGP包导致rpd崩溃漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-101973 Junos OS pkid 拒绝服务漏洞 — Junos OS 7.5 High 2026-10-14
CVE-2026-110659 ELFIO 3.12 空指针解引用漏洞 — ELFIO 5.5 Medium 2026-10-14
CVE-2026-110600 xlsxio 0.2.37 工作表关系无ID导致空指针解引用漏洞 — xlsxio 5.5 Medium 2026-10-14
CVE-2026-77207 PKCS#7 无证书包空指针解引用漏洞 — libreswan 7.5 High 2026-10-13
CVE-2026-77206 IKEv2 EAP代码空指针解引用漏洞 — libreswan 7.5 High 2026-10-13
CVE-2026-103824 Substance 3D Designer NULL指针解引用漏洞 — Substance 3D Designer 5.5 Medium 2026-10-13
CVE-2026-103826 Substance 3D Designer 空指针解引用漏洞 — Substance 3D Designer 5.5 Medium 2026-10-13
CVE-2026-103828 Substance3D Designer空指针解引用漏洞 — Substance 3D Designer 5.5 Medium 2026-10-13
CVE-2026-103829 Substance 3D Designer空指针解引用漏洞 — Substance 3D Designer 5.5 Medium 2026-10-13
CVE-2026-95640 Photoshop Desktop空指针解引用漏洞 — Photoshop 5.5 Medium 2026-10-13
CVE-2026-105896 Photoshop Desktop 空指针解引用漏洞 — Photoshop 5.5 Medium 2026-10-13
CVE-2026-103852 Substance3D Stager空指针解引用漏洞 — Adobe Substance 3D Stager 5.5 Medium 2026-10-13
CVE-2026-103855 Dimension NULL指针解引用漏洞 — Adobe Dimension 5.5 Medium 2026-10-13

CWE-476(空指针解引用) 是常见的弱点类别,本平台收录该类弱点关联的 1557 条 CVE 漏洞。