CVE-2026-107733

In SumatraPDF version 3.6.1 and earlier for Windows, a null-pointer dereference occurs within the FrameOnCommand() function when handling CmdExec while no document tab is open. The root cause is the passing of a null current-tab pointer to RunWithExe(), leading to the dereferencing of WindowTab::...

CVE-2026-107708

MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's getpacprincwithrealm that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a...

CVE-2026-107778

MIT Kerberos 5 krb5 through 1.22.2 contains a NULL pointer dereference in makecredlist in rdcred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticketinfo entries through...

CVE-2026-107778

MIT Kerberos 5 (krb5 ) versions through 1.22.2 are vulnerable to a NULL pointer dereference within the make_cred_list() function in rd_cred.c. This flaw occurs when authenticated Kerberos clients send mismatched KRB-CRED arrays, specifically by sending forwarded credentials containing more ticket...

CVE-2026-107778 MIT krb5 through 1.22.2 NULL Pointer Dereference via krb5_rd_cred()

MIT Kerberos 5 krb5 through 1.22.2 contains a NULL pointer dereference in makecredlist in rdcred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticketinfo entries through...

EUVD-2026-95256

MIT Kerberos 5 krb5 through 1.22.2 contains a NULL pointer dereference in makecredlist in rdcred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticketinfo entries through...

CVE-2026-107708

The MIT krb5 library (versions through 1.22.2 ) is vulnerable to a NULL pointer dereference within the KDC's get_pac_princ_with_realm() function. The flaw occurs when the function processes an S4U2Proxy request containing a PAC with a malformed client name; the function incorrectly returns succes...

CVE-2026-107708 MIT krb5 through 1.22.2 KDC NULL Pointer Dereference via S4U2Proxy PAC

MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's getpacprincwithrealm that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a...

EUVD-2026-95255

MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's getpacprincwithrealm that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a...

CVE-2025-4476-Exploit

CVE-2025-4476-Exploit 一个用于发送带有超大 Authorization: Basic 头的 HTTP GET 请求的小型 Python 测试客户端。 该工具旨在用于实验室测试和研究头部解析问题（例如，libsoup 中诸如 CVE-2025-4476 的空指针解引用/崩溃漏洞）。它演示了带有畸形头的客户端-服务器交互如何触发解析错误；它不是一个漏洞利用框架。 用法：仅针对本地或已授权的测试目标运行。 重要提示：请负责任地使用——未经明确许可，请勿扫描或攻击系统。...

CVE-2025-24990_POC

Windows Agere Modem 驱动程序（ltmdm64.sys）。该驱动程序非常老旧，默认情况下不会在我的测试机器上加载，因此我将在 BYOVD 场景中利用它。有趣的是，根据我的研究，该驱动程序自 Windows 7 起就已存在，并且至少有一个漏洞。此处 当时，MSRC 没有采取任何行动 🤡 漏洞 该驱动程序中的某些 IOCTL 使用了 METHODNEITHER，但未检查调用者提供的地址缓冲区是来自用户模式还是内核模式。以下是我用 OSR 解码的一个示例 IOCTL 代码： 这意味着你可以向 DeviceIoControl API 提供内核地址，驱动程序会正常处理它。...

CVE-2021-28476

CVE-2021-28476：Hyper-V vmswitch.sys 来自客户虚拟机的任意指针解引用 摘要： Hyper-V 客户虚拟机可因其 vmswitch.sys 中的 VmsIfrInfoParamsOIDSWITCHNICREQUEST 函数对输入的不安全解析，而在其底层宿主机上触发拒绝服务（Denial-of-Service）条件。该崩溃是由函数试图将客户机控制的值当作宿主机虚拟地址进行解引用所致。在某些条件下，此漏洞可能被用于获取远程代码执行（RCE），即当请求连同指向攻击者控制数据的指针被传递给底层硬件设备时，但据我所知，该技术尚未被公开演示。 披露日期： 补丁日期：...

CVE-2026-23398

CVE-2026-23398 Linux 内核 icmptagvalidation 空指针解引用（远程拒绝服务） 描述 net/ipv4/icmp.c 中的 icmptagvalidation 在解引用 inetprotosproto 时未进行 NULL 检查。远程攻击者可以发送单个精心构造的 ICMP Fragmentation Needed 数据包，其中包含未注册的内部协议号，从而在 softirq 上下文中使内核崩溃。 受影响版本：提交 614aefe56af8（主线）之前的 Linux 内核 / d938dd5a0ad7（稳定版 6.12）之前的版本 用法 sudo python...

EUVD-2026-94530

Excelize: Nil-pointer dereference in GetSlicers when a worksheet has extLst present but no drawing element...

CVE-2026-45729

CVE-2026-45729 — ThorVG 通过恶意 SVG 导致的空指针解引用 严重程度： CVSS 4.3（中等） — CWE-476 安全公告： GHSA-f863-8ghq-7h64 已修复版本： ThorVG v1.0.5 状态： 已修补 / 已公开披露 摘要 ThorVG 的 SVG 解析器在处理根 节点内部截断的子元素标签时，解引用了一个从未初始化的指针。此漏洞可通过正常的渲染路径（tvg::Picture::load → 解析 → 渲染）触发，且只需 6 字节 的输入即可触发。 在标准 Linux 系统上，最坏情况是进程崩溃（DoS）—— mmapminaddr 阻止...

CVE-2015-8543_for_SLE12SP1

$cat /etc/-release PRETTYNAME="SUSE Linux Enterprise Server 12 SP1" $id uid=1000jeremysp1 gid=100users groups=100users $sudo sh disablesecurity.sh $gcc exp.c -o exp 2/dev/null $../nsjail/nsjail -Mo --user 0 --group 0 --keepcaps --chroot / -- /bin/sh -i sh-4.2 /home/jeremysp1/nullpointerderf/exp +...

practice-22-23

Proyecto Para ejecutar: ./script.sh Repositorio en GitHub - https://github.com/LaCinquette/practice-22-23 Desarrollo 1. Para buscar la vulnerabilidad elegí el proyecto FFmpeg. Encontré en él un commit que cumplía los requisitos, a saber: Correspondía al tipo CWE-476 - desreferencia de puntero nul...

CVE-2026-16165

IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to cause a denial of service due to a null pointer dereference...

CVE-2026-107613

A NULL pointer dereference vulnerability in the Win8ScreenDriver component of GlavSoft TightVNC Server for Windows before 2.8.88 allows an attacker to crash the server, causing a denial of service. When re-initialization of the DXGI Desktop Duplication driver fails in applyNewScreenProperties for...

389-ds-base: 389-ds-base: NULL pointer dereference in deref control plugin BER parser

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure...