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Search Results (1588 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-10671 | 1 Zephyrproject | 1 Zephyr | 2026-07-14 | 7.1 High |
| In Zephyr's kernel pipe implementation, the userspace syscall verifier z_vrfy_k_pipe_init() in kernel/pipe.c used K_SYSCALL_OBJ() (which requires the kernel object to already be initialized) instead of K_SYSCALL_OBJ_NEVER_INIT() (which rejects an already-initialized object). As a result, on CONFIG_USERSPACE builds an unprivileged user thread that has been granted access to a k_pipe object can invoke the k_pipe_init syscall to re-initialize a pipe that is already in use. z_impl_k_pipe_init() unconditionally resets the ring buffer, sets pipe->waiting to 0, and re-initializes both wait queues (z_waitq_init on pipe->data and pipe->space) without waking or accounting for threads currently blocked on the pipe. Any thread already pended in k_pipe_read()/k_pipe_write() is left orphaned: still marked pending with pended_on pointing at the cleared wait queue and with stale qnode_dlist links into the (now re-initialized) embedded list head. When such an orphaned waiter is later timed out or woken, the scheduler calls sys_dlist_remove() on its stale node, writing through dangling prev/next pointers into kernel wait-queue/scheduler structures, causing list corruption (an attacker-driven invalid kernel write), lost wakeups, indefinitely blocked threads, and silent data loss. The flaw lets a deprivileged user thread corrupt the state of a kernel object shared with other threads/partitions. The fix switches the verifier to K_SYSCALL_OBJ_NEVER_INIT(), matching the existing k_msgq_init verifier, so a user thread can no longer re-initialize a live pipe. The vulnerable code shipped in v4.1.0 and remained through v4.4.0. | ||||
| CVE-2026-61861 | 1 Imagemagick | 1 Imagemagick | 2026-07-13 | 3.7 Low |
| ImageMagick before 7.1.2-26 contains a use-after-free vulnerability in the FormatMagickCaption method when memory allocation fails. Attackers can trigger memory allocation failures to cause a dangling pointer to reference freed memory, potentially enabling denial of service or code execution. | ||||
| CVE-2026-56373 | 1 Imagemagick | 1 Imagemagick | 2026-07-11 | 3.7 Low |
| ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory. | ||||
| CVE-2026-15173 | 1 Wireshark | 1 Wireshark | 2026-07-10 | 4.7 Medium |
| pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service | ||||
| CVE-2026-56000 | 1 X.org | 3 X Server, Xorg-server, Xwayland | 2026-07-10 | 7.8 High |
| Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory. | ||||
| CVE-2026-10536 | 2 Curl, Haxx | 2 Curl, Curl | 2026-07-10 | 9.8 Critical |
| A use-after-free vulnerability exists in libcurl when an application configures an HTTP/2 stream-dependency tree via `CURLOPT_STREAM_DEPENDS` or `CURLOPT_STREAM_DEPENDS_E`, subsequently invokes `curl_easy_reset()`, and finally terminates the handle with `curl_easy_cleanup()`. During this final cleanup phase, libcurl attempts to access and modify an internal structure that was already freed during the reset operation. | ||||
| CVE-2026-46215 | 1 Linux | 1 Linux Kernel | 2026-07-09 | 7.8 High |
| In the Linux kernel, the following vulnerability has been resolved: drm: Set old handle to NULL before prime swap in change_handle There was a potential race condition in change_handle. The ioctl briefly had a single object with two idr entries; a concurrent gem_close could delete the object and remove one of the handles while leaving the other one dangling, which could subsequently be dereferenced for a use-after-free. To fix this, do the same dance that gem_close itself does. (f6cd7daecff5 drm: Release driver references to handle before making it available again) First idr_replace the old handle to NULL. Later, if the prime operations are successful, actually close it. create_tail required a similar dance to avoid a similar problem. (bd46cece51a3 drm/gem: Fix race in drm_gem_handle_create_tail()) It idr_allocs the new handle with NULL, then swaps in the correct object later to avoid races. We don't need to do that here, since the only operations that could race are drm_prime, and change_handle holds the prime lock for the entire duration. v2: cleanups of error paths | ||||
| CVE-2026-54778 | 1 Corewcf | 1 Corewcf | 2026-07-09 | 6.2 Medium |
| CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF UnixDomainSocket POSIX peer identity resolution uses non-reentrant getpwuid and getgrgid calls, allowing concurrent connections to attribute one connection's identity to another or crash the host process under contention. This issue is fixed in versions 1.8.1 and 1.9.1. | ||||
| CVE-2026-60002 | 1 Openbsd | 1 Openssh | 2026-07-08 | 7.7 High |
| ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.) | ||||
| CVE-2026-9080 | 2 Curl, Haxx | 2 Curl, Curl | 2026-07-06 | 7.3 High |
| Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed. | ||||
| CVE-2026-14788 | 2 Radare, Radareorg | 2 Radare2, Radare2 | 2026-07-06 | 3.3 Low |
| A security vulnerability has been detected in radareorg radare2 up to 6.1.6. Affected by this vulnerability is the function r_core_bin_load of the file libr/core/cfile.c. Such manipulation leads to use after free. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. The name of the patch is 635ab1eeb30340c26076722a90cb91fb2272130b. Applying a patch is advised to resolve this issue. | ||||
| CVE-2026-53157 | 1 Linux | 1 Linux Kernel | 2026-07-04 | 7.8 High |
| In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type. | ||||
| CVE-2026-55510 | 1 Imagemagick | 1 Imagemagick | 2026-07-02 | 5.5 Medium |
| ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-51 and 7.1.2-26, when identifying an image with a crafted 8BIM profile with a specific format string a use-after-free will occur. This issue has been fixed in versions 6.9.13-51 and 7.1.2-26. | ||||
| CVE-2026-54898 | 1 Ohler | 1 Oj | 2026-07-01 | 6.5 Medium |
| Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2,Oj::Parser#parse is vulnerable to a heap use-after-free when a SAJ/SAJ2 callback mutates the input JSON string during parsing. The C engine holds a raw const byte * pointer into the Ruby string's internal buffer. If a callback (e.g. hash_start) resizes the string — for example by calling String#replace with a longer value — Ruby reallocates the string buffer and frees the old one. The C parser's pointer is left dangling; the next character read at parser.c:607 is a use-after-free. This issue has been fixed in version 3.17.2. | ||||
| CVE-2026-54899 | 1 Ohler | 1 Oj | 2026-07-01 | 6.5 Medium |
| Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to version 3.17.2, disabling symbol_keys on a reused Oj::Parser instance triggers a heap use-after-free. When symbol_keys is toggled from true to false, opt_symbol_keys_set frees the internal key cache (cache_free) but does not clear the pointer. The next parse call reads from the freed cache via cache_intern, producing a use-after-free. This issue has been fixed in version 3.17.2. | ||||
| CVE-2026-12610 | 3 Fedoraproject, Redhat, Sssd | 7 Sssd, Enterprise Linux, Hardened Images and 4 more | 2026-07-01 | 6.4 Medium |
| A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit. | ||||
| CVE-2026-46523 | 1 Imagemagick | 1 Imagemagick | 2026-06-30 | 6.2 Medium |
| ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2.23 and 6.9.13-48, a crafted MSL image can trigger a heap-use-after-free. Versions 7.1.2.23 and 6.9.13-48 fix the issue. | ||||
| CVE-2025-61664 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-30 | 4.9 Medium |
| A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity. | ||||
| CVE-2025-61663 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-30 | 4.9 Medium |
| A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability. Impact on the data integrity and confidentiality is also not discarded. | ||||
| CVE-2025-54771 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-30 | 4.9 Medium |
| A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded. | ||||