Alertas de Seguridad de la Información

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46306] In the Linux kernel, the following vulnerability has been resolved: flow_dissector: do not dissect …

In the Linux kernel, the following vulnerability has been resolved: flow_dissector: do not dissect PPPoE PFC frames RFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the flow dissector driver has assumed an uncompressed frame until the blamed commit. During the review process o…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46307] In the Linux kernel, the following vulnerability has been resolved: wifi: ath5k: do not access arra…

In the Linux kernel, the following vulnerability has been resolved: wifi: ath5k: do not access array OOB Vincent reports: > The ath5k driver seems to do an array-index-out-of-bounds access as > shown by the UBSAN kernel message: > UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20 > index 4 is out of range for type 'ieee80211_tx_rate [4]' > ... > Call Trace: >

nvdaltovulnerabilidad CVSS 8.3 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46308] In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix use-aft…

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy() In scpsys_get_bus_protection_legacy(), of_find_node_with_property() returns a device node with its reference count incremented. The function then calls of_node_put(node) before checking whether syscon_regmap_lookup_by_phandle() returns an error. If an e…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46309] In the Linux kernel, the following vulnerability has been resolved: drm/xe/uapi: Reject coh_none PA…

In the Linux kernel, the following vulnerability has been resolved: drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise Add validation in xe_vm_madvise_ioctl() to reject PAT indices with XE_COH_NONE coherency mode when applied to CPU cached memory. Using coh_none with CPU cached buffers is a security issue. When the kernel clears pages before reallocation, the clear operatio…

nvdaltovulnerabilidad CVSS 7.0 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46299] In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix held lock freed on…

In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix held lock freed on hfsplus_fill_super() hfsplus_fill_super() calls hfs_find_init() to initialize a search structure, which acquires tree->tree_lock. If the subsequent call to hfsplus_cat_build_key() fails, the function jumps to the out_put_root error label without releasing the lock. The later cleanup path then free…

nvdaltovulnerabilidad CVSS 7.0 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46301] In the Linux kernel, the following vulnerability has been resolved: spi: topcliff-pch: fix use-afte…

In the Linux kernel, the following vulnerability has been resolved: spi: topcliff-pch: fix use-after-free on unbind Give the driver a chance to flush its queue before releasing the DMA buffers on driver unbind

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46303] In the Linux kernel, the following vulnerability has been resolved: isofs: validate Rock Ridge CE c…

In the Linux kernel, the following vulnerability has been resolved: isofs: validate Rock Ridge CE continuation extent against volume size rock_continue() reads rs->cont_extent verbatim from the Rock Ridge CE record and passes it to sb_bread() without checking that the block number is within the mounted ISO 9660 volume. commit e595447e177b ("[PATCH] rock.c: handle corrupted directories") added c…

nvdaltovulnerabilidad CVSS 8.2 NVD

L Crítico vulnerabilidad

08/06/2026

[CVE-2026-46289] In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length cal…

In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length calculations in extract_kvec_to_sg Patch series "Fix bugs in extract_iter_to_sg()", v3. Fix bugs in the kvec and user variants of extract_iter_to_sg. This series is growing due to useful remarks made by sashiko.dev. The main bugs are: - The length for an sglist entry when extracting from a kvec c…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46293] In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix o…

In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix out of bounds access during output registration UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain t…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46294] In the Linux kernel, the following vulnerability has been resolved: dm: fix a buffer overflow in io…

In the Linux kernel, the following vulnerability has been resolved: dm: fix a buffer overflow in ioctl processing Tony Asleson (using Claude) found a buffer overflow in dm-ioctl in the function retrieve_status: 1. The code in retrieve_status checks that the output string fits into the output buffer and writes the output string there 2. Then, the code aligns the "outptr" variable to the next …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46285] In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free …

In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-f…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46288] In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-fre…

In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After t…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46277] In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch de…

In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch device folio after calling ->folio_free() The contents of a device folio can immediately change after calling ->folio_free(), as the folio may be reallocated by a driver with a different order. Instead of touching the folio again to extract the pgmap, use the local stack variable when calling percpu…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46279] In the Linux kernel, the following vulnerability has been resolved: mm/alloc_tag: clear codetag for…

In the Linux kernel, the following vulnerability has been resolved: mm/alloc_tag: clear codetag for pages allocated before page_ext initialization Due to initialization ordering, page_ext is allocated and initialized relatively late during boot. Some pages have already been allocated and freed before page_ext becomes available, leaving their codetag uninitialized. A clear example is in init_se…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46280] In the Linux kernel, the following vulnerability has been resolved: lib: test_hmm: evict device pag…

In the Linux kernel, the following vulnerability has been resolved: lib: test_hmm: evict device pages on file close to avoid use-after-free Patch series "Minor hmm_test fixes and cleanups". Two bugfixes a cleanup for the HMM kernel selftests. These were mostly reported by Zenghui Yu with special thanks to Lorenzo for analysing and pointing out the problems. This patch (of 3): When dmirror_f…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46281] In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix buffer overflow in…

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix buffer overflow in vrealloc_node_align() Commit 4c5d3365882d ("mm/vmalloc: allow to set node and align in vrealloc") added the ability to force a new allocation if the current pointer is on the wrong NUMA node, or if an alignment constraint is not met, even if the user is shrinking the allocation. On this path (nee…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

08/06/2026

[CVE-2026-39910] STACKIT IaaS API contains a missing authorization check vulnerability that allows authenticated, low…

STACKIT IaaS API contains a missing authorization check vulnerability that allows authenticated, low-privileged attackers to escalate privileges to full organization compromise by attaching arbitrary service accounts to virtual machines they control. Attackers can exploit the unvalidated PUT servers service-accounts endpoint to attach high-privileged service accounts and query the Instance Metadat…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

08/06/2026

[CVE-2026-41448] AdGuard Home, when started with the --glinet flag, contains an authentication bypass vulnerability t…

AdGuard Home, when started with the --glinet flag, contains an authentication bypass vulnerability that allows unauthenticated attackers to gain full admin access by supplying a path traversal sequence in the Admin-Token cookie, exploiting unsanitized string concatenation in the token file path construction within the authglinet middleware. Attackers can craft a request with a traversal payload in…

nvdcriticovulnerabilidad CVSS 9.4 NVD

M Crítico vulnerabilidad

08/06/2026

[CVE-2026-25555] OpenBullet2 through version 0.3.2 contains an authentication bypass vulnerability in the API key aut…

OpenBullet2 through version 0.3.2 contains an authentication bypass vulnerability in the API key authentication middleware that allows unauthenticated attackers to gain admin access by supplying an empty X-Api-Key header value. Attackers can exploit the middleware's comparison of the supplied header against an empty AdminApiKey default string to access the admin console and all API endpoints witho…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

08/06/2026

[CVE-2026-25559] OpenBullet2 through version 0.3.2 contains a path traversal vulnerability in the wordlist endpoint t…

OpenBullet2 through version 0.3.2 contains a path traversal vulnerability in the wordlist endpoint that allows authenticated attackers to perform arbitrary file read, write, and delete operations by supplying unsanitized absolute paths to the upload handler and wordlist functions. Attackers can chain the file write and delete primitives to achieve remote code execution by manipulating critical sys…

nvdaltovulnerabilidad CVSS 8.8 NVD