Alertas de Seguridad de la Información

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64383] In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in…

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_flush() replay SMB2_flush() keeps its response buffer bookkeeping across replay attempts. If a replayable flush response is received and the retry then fails before cifs_send_recv() stores a replacement response, flush_exit will free the stale response pointer a second time. Reinitialize res…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64384] In the Linux kernel, the following vulnerability has been resolved: smb: client: fix change notify …

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix change notify replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_notify_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale fr…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64385] In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in…

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_ioctl() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_ioctl_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale f…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64386] In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() r…

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64355] In the Linux kernel, the following vulnerability has been resolved: bpf: Reject fragmented frames i…

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject fragmented frames in devmap Devmap broadcast redirects clone the packet for all but the last destination. For native XDP, that clone path copies only the linear xdp_frame data, while fragmented frames keep skb_shared_info in tailroom outside the linear area. Cloning such a frame leaves XDP_FLAGS_HAS_FRAGS set but wi…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64319] In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: validate reply mess…

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: validate reply message payload bounds against transfer length nvmet_auth_reply() accesses the variable-length rval[] array using attacker-controlled hl (hash length) and dhvlen (DH value length) fields without verifying they fit within the allocated buffer of tl bytes. A malicious NVMe-oF initiator can craft a DHCHA…

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64320] In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-boun…

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmet_execute_disc_get_log_page() validates only the dword alignment of the host-supplied Log Page Offset (lpo). The 64-bit offset is then added to a small kzalloc'd buffer that holds the discovery log page and the result is passed straight to nvmet_copy_to_s…

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64303] In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the R…

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI …

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64268] In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: bound Read Response p…

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: bound Read Response placement to the RREAD length In drivers/infiniband/sw/siw/siw_qp_rx.c, siw_proc_rresp() places each inbound Read Response DDP segment at sge->laddr + wqe->processed and then accumulates wqe->processed, but it never checks the running total against the sink buffer length on continuation segments. si…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64269] In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write…

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg When the server answers an RTRS READ, rdma_write_sg() builds the source scatter/gather entry for the IB_WR_RDMA_WRITE that returns data to the peer. Its length is taken directly from the wire descriptor: plist->length = le32_to_cpu(id->rd_msg->desc[0].len);…

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64257] In the Linux kernel, the following vulnerability has been resolved: smb: client: reject overlapping…

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject overlapping data areas in SMB2 responses Commit 53b7c271f06b ("smb: client: restrict implied bcc[0] exemption to responses without data area") restricted the implied bcc[0] length exception to responses without a data area. However, the overlap handling in __smb2_calc_size() clears data_length, which can make…

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-64232] In the Linux kernel, the following vulnerability has been resolved: block: recompute nr_integrity_s…

In the Linux kernel, the following vulnerability has been resolved: block: recompute nr_integrity_segments in blk_insert_cloned_request blk_insert_cloned_request() already recomputes nr_phys_segments against the bottom queue, because "the queue settings related to segment counting may differ from the original queue." The exact same reasoning applies to integrity segments: a stacked driver's unde…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-64216] In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential UAF in net…

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential UAF in netfs_unlock_abandoned_read_pages() netfs_unlock_abandoned_read_pages(rreq) accesses the index of the folios it is wanting to unlock and compares that to rreq->no_unlock_folio so that it doesn't unlock a folio being read for netfs_perform_write() or netfs_write_begin(). However, given that netfs_unlo…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-16634] TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99. The…

TOML::XS versions before 0.06 for Perl bundle an unsupported and vulnerable version of tomlc99. The tomlc99 library is no longer maintained, and has an uncontrolled recursion vulnerability publicly reported in the issue tracker. Any caller that passes untrusted TOML to from_toml risks a stack overflow from a deeply-nested document. TOML::XS version 0.06 or later uses the successor tomlc17 libra…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-15704] In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled deployments are vuln…

In Eclipse BaSyx Go Components versions up to and including 1.0.0, ABAC-enabled deployments are vulnerable to an authorization bypass caused by inconsistent trailing-slash handling between the ABAC middleware and the HTTP router. The shared router configuration used Chi's `middleware.StripSlashes`, so a request such as `GET /shells/` was dispatched to the registered `GET /shells` route. However…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-12877] The Project Management, Bug and Issue Tracking Plugin WordPress plugin before 5.1.0 does not saniti…

The Project Management, Bug and Issue Tracking Plugin WordPress plugin before 5.1.0 does not sanitise and escape user supplied input before using it in a SQL query, allowing unauthenticated attackers to perform SQL injection attacks. This is exploitable in the Project Management, Bug and Issue Tracking Plugin WordPress plugin before 5.1.0's standard front-end issue-tracker configuration.

nvdcriticovulnerabilidad CVSS 9.1 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-56191] Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tamp…

Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.

nvdcriticovulnerabilidad CVSS 10.0 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-56165] Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over…

Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-54120] Improper input validation in Microsoft Surface allows an authorized attacker to execute code over a …

Improper input validation in Microsoft Surface allows an authorized attacker to execute code over a network.

nvdcriticovulnerabilidad CVSS 9.9 NVD

M Crítico vulnerabilidad

24/07/2026

[CVE-2026-50517] Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over…

Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.

nvdcriticovulnerabilidad CVSS 9.9 NVD