Alertas de Seguridad de la Información

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64368] In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing t…

In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled When init (zeroing) on allocation is requested, for kmalloc() we generally have to zero the full object size even if a smaller size is requested, in order to provide krealloc()'s __GFP_ZERO guarantees. But if we track the requested size, krealloc() uses …

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64354] In the Linux kernel, the following vulnerability has been resolved: bpf: Validate BTF repeated fiel…

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate BTF repeated field counts before expansion btf_parse_struct_metas() walks user-supplied BTF during BPF_BTF_LOAD, and btf_repeat_fields() expands repeatable fields from array elements into the fixed BTF_FIELDS_MAX scratch array used by btf_parse_fields(). The remaining-capacity check performs the expanded field cou…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64296] In the Linux kernel, the following vulnerability has been resolved: exfat: bound uniname advance in…

In the Linux kernel, the following vulnerability has been resolved: exfat: bound uniname advance in exfat_find_dir_entry() In exfat_find_dir_entry(), each TYPE_EXTEND (file name) entry advances the output pointer by a fixed amount while the loop guard only tracks the accumulated name length: if (++order == 2) uniname = p_uniname->name; else uniname += EXFAT_FILE_NAME_LEN; len = exfat_ext…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64286] In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Clear __hyp_running…

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU flush_hyp_vcpu() copies the host vCPU context into the hyp's private vCPU on every run. ctxt_to_vcpu() expects a guest context to have a NULL __hyp_running_vcpu, which is only ever set on the host context, so that it resolves the vCPU via container_of(). While …

nvdaltovulnerabilidad CVSS 8.2 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64277] In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - bound t…

In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count rmi_f3a_initialize() takes the GPIO count from the device query register (f3a->gpio_count = buf & RMI_F3A_GPIO_COUNT, range 0..127). rmi_f3a_map_gpios() then allocates gpio_key_map with min(gpio_count, TRACKSTICK_RANGE_END) == at most 6 entries, but rmi_f3a_attention…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64281] In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when t…

In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when the transport closes Threads parked in svc_rdma_sq_wait() on sc_sq_ticket_wait or sc_send_wait can hang indefinitely in TASK_UNINTERRUPTIBLE state across transport teardown, pinning svc_xprt references and blocking svc_rdma_free(). The close path sets XPT_CLOSE before invoking xpo_detach and both w…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64259] In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fuse_req on …

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fuse_req on SQE commit only findable after memcpy Bad userspace might try to trick us and send commit SQEs request unique / commit-id of requests that are not even send to fuse-server (io_uring_cmd_done() not called) yet. fuse_uring_commit_fetch() ends the fuse request when the ring entry has a wrong state, b…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64266] In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before re…

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fuse_ref_folio() fuse_ref_folio() unlocks the request but does not re-lock it before returning. fuse_chan_abort() can end the request and the async end callback (eg fuse_writepage_free()) can free the args while the subsequent copy chain logic after fuse_ref_folio() accesses them, lead…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-66040] FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in …

FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple IFD entries reference the same large value payload, causing canonical serialization to expand the output…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-66036] FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in …

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vf_hqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the -reinit_filter 0 option. Attackers can provide a malicious video input where vf_hqdn3d.config_input() a…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-66032] libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_op…

libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_open() function in src/sftp.c that allows a malicious SSH server to corrupt the heap of any authenticated client opening an SFTP session. When a server responds to SSH_FXP_OPEN with SSH_FXP_STATUS containing FX_OK, the response data buffer is freed, and if a subsequent sftp_packet_require() call retur…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

24/07/2026

[CVE-2026-66034] libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that …

libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that allows a malicious SSH server to trigger an arbitrary-length heap out-of-bounds read and a free of an uninitialized pointer via the publickey subsystem. In libssh2_publickey_list_fetch(), the version 1 response parser reads a server-controlled comment_len value and advances the parse pointer without…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-65711] sysPass through version 3.2.11 contains an OS command injection vulnerability that allows authentica…

sysPass through version 3.2.11 contains an OS command injection vulnerability that allows authenticated administrators to execute arbitrary commands as the web server process user by setting a malicious backup path and triggering a backup. The FileBackupService builds a tar shell command via string concatenation, inserting the admin-configurable siteBackupPath setting without escapeshellarg() or e…

nvdaltovulnerabilidad CVSS 7.2 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-65693] Microweber CMS through 2.0.20 contains a server-side template injection vulnerability that allows au…

Microweber CMS through 2.0.20 contains a server-side template injection vulnerability that allows authenticated administrators to achieve arbitrary OS command execution by injecting Twig expressions into mail templates. Attackers can exploit the unsandboxed Twig environment in TwigView::render(), which lacks SandboxExtension or a SecurityPolicy, to inject malicious expressions such as filter('syst…

nvdaltovulnerabilidad CVSS 7.2 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-66027] Suna before 0.9.102 contains a broken access control vulnerability in the message queue API that all…

Suna before 0.9.102 contains a broken access control vulnerability in the message queue API that allows authenticated attackers to access and manipulate queue resources belonging to other users by exploiting missing ownership and account isolation checks. Attackers can read pending prompt queues of all users, read or delete individual sessions, and inject arbitrary prompts into another user's sess…

nvdaltovulnerabilidad CVSS 8.3 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-64226] In the Linux kernel, the following vulnerability has been resolved: sched_ext: Avoid UAF in scx_roo…

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path In scx_root_enable_workfn(), put_task_struct(p) is called before scx_error() dereferences p->comm and p->pid. If the iterator's reference is the last drop, the task is freed synchronously and the deref becomes a UAF. Move put_task_struct() past scx_error().

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-64222] In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: avoid double free…

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: avoid double free of pool->stack on AQ init failure otx2_pool_aq_init() frees pool->stack when mailbox sync or retry allocation fails, but leaves the pointer unchanged. Later, otx2_sq_aura_pool_init() unwinds the partial setup through otx2_aura_pool_free(), which frees pool->stack again. The CN20K-specific cn20k_po…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-64218] In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix report_wor…

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix report_work leak on backbone_gw purge batadv_bla_purge_backbone_gw() removes stale backbone gateway entries, but fails to properly handle their associated report_work: - If report_work is running, the purge must wait for it to finish before freeing the backbone_gw, otherwise the worker may access freed me…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/07/2026

[CVE-2026-64210] In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked wr…

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked writing to ICOSQ During napi poll, when the affinity changes and there's still XSK work to be done, we trigger an ICOSQ interrupt on the new CPU. However, this triggering on the ICOSQ is done unprotected. There are 2 such races: A) mlx5e_trigger_irq() is called while mlx5e_xsk_alloc_rx_mpwqe() is r…

nvdaltovulnerabilidad CVSS 7.5 NVD

D Alto vulnerabilidad

24/07/2026

[CVE-2026-16801] Improper control of generation of code ('Code Injection') in the variables feature in Devolutions Po…

Improper control of generation of code ('Code Injection') in the variables feature in Devolutions PowerShell Universal 2026.2.2 and earlier allows an authenticated user with variable write permission to execute arbitrary PowerShell code via a crafted variable value that is not properly escaped when written to the variables configuration file.

nvdaltovulnerabilidad CVSS 8.8 NVD