CVE-2026-63380 Libevent: Null Pointer Dereference in `evws_new_session`

Libevent is an event notification library. Prior to 2.2.2-alpha, libevent can dereference invalid list pointers in ws.c when evwsnewsession enters its error path after evhttpstartws succeeds but buffereventenablelocking fails. evwsconnectionfree sees a non-null httpserver and unconditionally call...

CVE-2026-63380

Libevent is an event notification library. Prior to 2.2.2-alpha, libevent can dereference invalid list pointers in ws.c when evwsnewsession enters its error path after evhttpstartws succeeds but buffereventenablelocking fails. evwsconnectionfree sees a non-null httpserver and unconditionally call...

CVE-2026-74327

A flaw was found in the Linux kernel. A local attacker could trigger a null pointer dereference in the isvmareahugepages function. This occurs when findvmarea returns a NULL value, which is not properly handled before being dereferenced. Successful exploitation of this vulnerability could lead to...

libxml2: libxml2: NULL pointer dereference parsing nextCatalog without catalog attribute

A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a nextCatalog element lacks its mandatory catalog attribute, leading to the application crashing and causing a...

CVE-2026-74304

A flaw was found in the Bluetooth subsystem of the Linux kernel, specifically within the hciqca module. This vulnerability occurs when the qcasetup function is called for hciuart devices connected through non-serdev paths, leading to a NULL pointer dereference. A local attacker could potentially...

CVE-2026-76881

A flaw was found in Wireshark. A NULL pointer dereference vulnerability exists within the CMS Cryptographic Message Syntax protocol dissector. This issue can be triggered by processing a specially crafted network capture file, leading to an application crash. A remote attacker could exploit this ...

CVE-2026-74274

A flaw was found in the Linux kernel's CXL Compute Express Link driver. When endpoint decoders are removed from a CXL region's target array, the driver can fail to properly fill the resulting NULL pointer holes. This can lead to the system attempting to access a NULL pointer, causing a general...

CVE-2026-74286

A flaw was found in the Linux kernel's Packet Forwarding Control Protocol PFCP module. The module fails to properly allocate per-CPU statistics, leaving a pointer uninitialized. A local attacker can exploit this by creating a PFCP rtnetlink device, which triggers a null pointer dereference. This...

DEBIAN-CVE-2026-73199

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

CVE-2026-73199

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

CVE-2026-73199 Ipa: freeipa: null pointer dereference in `ipa-enrollment` extended operation (`join_oid`) via missing request value

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

CVE-2026-73199 Ipa: freeipa: null pointer dereference in `ipa-enrollment` extended operation (`join_oid`) via missing request value

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

EUVD-2026-63246

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

CVE-2026-73199

FreeIPA 's ipa-enrollment SLAPI plugin crashes when a remote authenticated LDAP client omits the JOIN_OID request value in the extended operation, causing a null pointer dereference and server DoS. Red Hat recommends restricting LDAP network access to trusted clients or disabling the ipa-enrollme...

CVE-2026-73199

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

CVE-2026-73199

A flaw was found in the ipa-enrollment SLAPI plugin. A remote authenticated client can exploit a null pointer dereference vulnerability by sending a malformed Lightweight Directory Access Protocol LDAP extended operation. By omitting the request value for the JOINOID in the ipa-enrollment extende...

OESA-2026-3443 libgsasl security update

The library includes support for the SASL framework and at least partial support for the CRAM-MD5, EXTERNAL, GSSAPI, ANONYMOUS, PLAIN, SECURID, DIGEST-MD5, LOGIN, and NTLM mechanisms. Security Fixes: In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and...

kernel: sched/psi: fix race between file release and pressure write

A flaw was found in the Linux kernel's Pressure Stall Information PSI subsystem. A race condition exists between the file release and pressure write operations, specifically concerning the priv member of struct kernfsopenfile. This can lead to a use-after-free vulnerability or a NULL dereference,...

kernel: sched/psi: fix race between file release and pressure write

A flaw was found in the Linux kernel's Pressure Stall Information PSI subsystem. A race condition exists between the file release and pressure write operations, specifically concerning the priv member of struct kernfsopenfile. This can lead to a use-after-free vulnerability or a NULL dereference,...

kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

A flaw was found in the Linux kernel's Server-Message-Block Direct SMC-D client. A remote attacker can exploit this vulnerability by sending a specially crafted SMC-Dv2 proposal with a Channel Identifier CHID of 0. This malicious proposal can cause a null pointer dereference in the kernel's SMC...