Total
5701 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-23439 | 1 Linux | 1 Linux Kernel | 2026-04-23 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=n When CONFIG_IPV6 is disabled, the udp_sock_create6() function returns 0 (success) without actually creating a socket. Callers such as fou_create() then proceed to dereference the uninitialized socket pointer, resulting in a NULL pointer dereference. The captured NULL deref crash: BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:fou_nl_add_doit (net/ipv4/fou_core.c:590 net/ipv4/fou_core.c:764) [...] Call Trace: <TASK> genl_family_rcv_msg_doit.constprop.0 (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209) [...] netlink_rcv_skb (net/netlink/af_netlink.c:2550) genl_rcv (net/netlink/genetlink.c:1219) netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344) netlink_sendmsg (net/netlink/af_netlink.c:1894) __sock_sendmsg (net/socket.c:727 (discriminator 1) net/socket.c:742 (discriminator 1)) __sys_sendto (./include/linux/file.h:62 (discriminator 1) ./include/linux/file.h:83 (discriminator 1) net/socket.c:2183 (discriminator 1)) __x64_sys_sendto (net/socket.c:2213 (discriminator 1) net/socket.c:2209 (discriminator 1) net/socket.c:2209 (discriminator 1)) do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) entry_SYSCALL_64_after_hwframe (net/arch/x86/entry/entry_64.S:130) This patch makes udp_sock_create6 return -EPFNOSUPPORT instead, so callers correctly take their error paths. There is only one caller of the vulnerable function and only privileged users can trigger it. | ||||
| CVE-2025-66769 | 2 Gonitro, Microsoft | 2 Nitro Pdf Pro, Windows | 2026-04-23 | 7.5 High |
| A NULL pointer dereference in Nitro PDF Pro for Windows v14.41.1.4 allows attackers to cause a Denial of Service (DoS) via a crafted XFA packet. | ||||
| CVE-2025-69624 | 3 Gonitro, Microsoft, Nitro | 3 Nitro Pdf Pro, Windows, Pdf Pro | 2026-04-23 | 7.5 High |
| Nitro PDF Pro for Windows 14.41.1.4 contains a NULL pointer dereference vulnerability in the JavaScript implementation of app.alert(). When app.alert() is called with more than one argument and the first argument evaluates to null (for example, app.alert(app.activeDocs, true) when app.activeDocs is null), the engine routes the call through a fallback path intended for non-string arguments. In this path, js_ValueToString() is invoked on the null value and returns an invalid string pointer, which is then passed to JS_GetStringChars() without validation. Dereferencing this pointer leads to an access violation and application crash when opening a crafted PDF. | ||||
| CVE-2026-31437 | 1 Linux | 1 Linux Kernel | 2026-04-23 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfs_unbuffered_write() on retry When a write subrequest is marked NETFS_SREQ_NEED_RETRY, the retry path in netfs_unbuffered_write() unconditionally calls stream->prepare_write() without checking if it is NULL. Filesystems such as 9P do not set the prepare_write operation, so stream->prepare_write remains NULL. When get_user_pages() fails with -EFAULT and the subrequest is flagged for retry, this results in a NULL pointer dereference at fs/netfs/direct_write.c:189. Fix this by mirroring the pattern already used in write_retry.c: if stream->prepare_write is NULL, skip renegotiation and directly reissue the subrequest via netfs_reissue_write(), which handles iterator reset, IN_PROGRESS flag, stats update and reissue internally. | ||||
| CVE-2006-4343 | 4 Canonical, Debian, Openssl and 1 more | 5 Ubuntu Linux, Debian Linux, Openssl and 2 more | 2026-04-23 | N/A |
| The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference. | ||||
| CVE-2009-1902 | 2 Fedoraproject, Trustwave | 2 Fedora, Modsecurity | 2026-04-23 | N/A |
| The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference. | ||||
| CVE-2008-1672 | 2 Canonical, Openssl | 2 Ubuntu Linux, Openssl | 2026-04-23 | N/A |
| OpenSSL 0.9.8f and 0.9.8g allows remote attackers to cause a denial of service (crash) via a TLS handshake that omits the Server Key Exchange message and uses "particular cipher suites," which triggers a NULL pointer dereference. | ||||
| CVE-2007-3473 | 2 Libgd, Redhat | 2 Gd Graphics Library, Enterprise Linux | 2026-04-23 | N/A |
| The gdImageCreateXbm function in the GD Graphics Library (libgd) before 2.0.35 allows user-assisted remote attackers to cause a denial of service (crash) via unspecified vectors involving a gdImageCreate failure. | ||||
| CVE-2007-1420 | 3 Mysql, Oracle, Redhat | 3 Mysql, Mysql, Enterprise Linux | 2026-04-23 | N/A |
| MySQL 5.x before 5.0.36 allows local users to cause a denial of service (database crash) by performing information_schema table subselects and using ORDER BY to sort a single-row result, which prevents certain structure elements from being initialized and triggers a NULL dereference in the filesort function. | ||||
| CVE-2009-2908 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-23 | N/A |
| The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount. | ||||
| CVE-2006-6565 | 1 Filezilla-project | 1 Filezilla Server | 2026-04-23 | N/A |
| FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) NLST commands, which results in a NULL pointer dereference, a different set of vectors than CVE-2006-6564. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command. | ||||
| CVE-2009-2849 | 2 Linux, Redhat | 3 Linux Kernel, Enterprise Linux, Enterprise Mrg | 2026-04-23 | N/A |
| The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attributes" and the (1) suspend_lo_store or (2) suspend_hi_store functions. NOTE: this is only a vulnerability when sysfs is writable by an attacker. | ||||
| CVE-2009-2768 | 1 Linux | 1 Linux Kernel | 2026-04-23 | 7.8 High |
| The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer." | ||||
| CVE-2007-4565 | 2 Fetchmail, Redhat | 2 Fetchmail, Enterprise Linux | 2026-04-23 | N/A |
| sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) by refusing certain warning messages that are sent over SMTP. | ||||
| CVE-2007-1327 | 1 Silc | 1 Silc-server | 2026-04-23 | N/A |
| The SILC_SERVER_CMD_FUNC function in apps/silcd/command.c in silc-server 1.0.2 allows remote attackers to cause a denial of service (NULL dereference and daemon crash) via a request without a cipher algorithm and an invalid HMAC algorithm. | ||||
| CVE-2009-0845 | 2 Mit, Redhat | 3 Kerberos, Kerberos 5, Enterprise Linux | 2026-04-23 | N/A |
| The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token. | ||||
| CVE-2008-1949 | 2 Gnu, Redhat | 2 Gnutls, Enterprise Linux | 2026-04-23 | N/A |
| The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2. | ||||
| CVE-2008-2812 | 8 Avaya, Canonical, Debian and 5 more | 16 Communication Manager, Expanded Meet-me Conferencing, Intuity Audix Lx and 13 more | 2026-04-23 | 7.8 High |
| The Linux kernel before 2.6.25.10 does not properly perform tty operations, which allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving NULL pointer dereference of function pointers in (1) hamradio/6pack.c, (2) hamradio/mkiss.c, (3) irda/irtty-sir.c, (4) ppp_async.c, (5) ppp_synctty.c, (6) slip.c, (7) wan/x25_asy.c, and (8) wireless/strip.c in drivers/net/. | ||||
| CVE-2009-4308 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-23 | N/A |
| The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal. | ||||
| CVE-2007-0887 | 1 Gecad Technologies | 1 Axigen Mail Server | 2026-04-23 | N/A |
| axigen 1.2.6 through 2.0.0b1 does not properly parse login credentials, which allows remote attackers to cause a denial of service (NULL dereference and application crash) via a base64-encoded "*\x00" sequence on the imap port (143/tcp). | ||||