Alertas de Seguridad de la Información

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46267] In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers an…

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46270] In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-…

In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally dealloca…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46271] In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads o…

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi-link connection, WCN7850 firmware crashes due to WoW offloads enabled on both primary and secondary links. Change to do it only on primary link to fix it. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46260] In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bound access i…

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bound access in fib6_add_rt2node(). syzbot reported out-of-bound read in fib6_add_rt2node(). [0] When IPv6 route is created with RTA_NH_ID, struct fib6_info does not have the trailing struct fib6_nh. The cited commit started to check !iter->fib6_nh->fib_nh_gw_family to ensure that rt6_qualify_for_ecmp() will r…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46263] In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bou…

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bounds stream encoder index v3 eng_id can be negative and that stream_enc_regs[] can be indexed out of bounds. eng_id is used directly as an index into stream_enc_regs[], which has only 5 entries. When eng_id is 5 (ENGINE_ID_DIGF) or negative, this can access memory past the end of the array. Add a …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46264] In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix sysfs initializa…

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix sysfs initialization In case of devm_add_action_or_reset() failure the provided cleanup action will be run immediately on the not yet initialized kobject. This may lead to errors like: [ ] kobject: '(null)' (ff110001393608e0): is not initialized, yet kobject_put() is being called. [ ] WARNING: lib/kobject.c:734…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46253] In the Linux kernel, the following vulnerability has been resolved: pstore/ram: fix buffer overflow…

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: fix buffer overflow in persistent_ram_save_old() persistent_ram_save_old() can be called multiple times for the same persistent_ram_zone (e.g., via ramoops_pstore_read -> ramoops_get_next_prz for PSTORE_TYPE_DMESG records). Currently, the function only allocates prz->old_log when it is NULL, but it unconditionally u…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46259] In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protect…

In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading real_parent in do_task_stat() When reading /proc/[pid]/stat, do_task_stat() accesses task->real_parent without proper RCU protection, which leads to: cpu 0 cpu 1 ----- ----- do_task_stat var = task->real_parent …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46250] In the Linux kernel, the following vulnerability has been resolved: MIPS: Work around LLVM bug when…

In the Linux kernel, the following vulnerability has been resolved: MIPS: Work around LLVM bug when gp is used as global register variable On MIPS, __current_thread_info is defined as global register variable locating in $gp, and is simply assigned with new address during kernel relocation. This however is broken with LLVM, which always restores $gp if it finds $gp is clobbered in any form, inc…

nvdaltovulnerabilidad CVSS 7.3 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46251] In the Linux kernel, the following vulnerability has been resolved: btrfs: fix block_group_tree dir…

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix block_group_tree dirty_list corruption When the incompat flag EXTENT_TREE_V2 is set, we unconditionally add the block group tree to the switch_commits list before calling switch_commit_roots, as we do for the tree root and the chunk root. However, the block group tree uses normal root dirty tracking and in any transac…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46246] In the Linux kernel, the following vulnerability has been resolved: power: supply: pm8916_lbc: Fix …

In the Linux kernel, the following vulnerability has been resolved: power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `extcon` handle, means that the `extcon` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in r…

nvdaltovulnerabilidad CVSS 7.8 NVD

T Alto vulnerabilidad

03/06/2026

[CVE-2026-40290] OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel r…

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.16.0 and prior to 4.11.0, a user-after-free (UAF) race condition exists in the shared memory teardown logic of FF-A within OP-TEE SPMC/SP flows. This only applies when OP-TEE is configured as an SPMC for S-EL0 SPs, …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36609] Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 uses a static authentication nonce t…

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 uses a static authentication nonce that does not change between requests from the same source IP. Combined with the predictable XOR-based password encoding (securityEncode function), this allows an attacker to reverse captured authentication tokens to recover the plaintext password.

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36611] Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized buffer w…

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized buffer when receiving POST requests without SOAPAction header on UPnP port 1900, exposing internal memory to unauthenticated adjacent network attackers.

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36603] Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 exposes 15 of 18 UPnP IGD actions wi…

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 exposes 15 of 18 UPnP IGD actions without authentication on port 1900, including AddPortMapping and GetExternalIPAddress. UPnP is enabled by default through the admin interface, allowing any unauthenticated LAN device to create arbitrary port forwarding rules and access WAN traffic statistics.

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36606] Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 encrypts configuration backups with …

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 encrypts configuration backups with a hardcoded DES key using single DES in ECB mode. An attacker who obtains a backup file can decrypt it to recover all stored credentials including admin password, WiFi PSK, and DDNS credentials.

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36607] Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute-force a…

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute-force attacks via the TDDP password change endpoint (code=10), which lacks the rate limiting applied to the login endpoint (code=7). An attacker on the adjacent network can attempt unlimited passwords without triggering account lockout.

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-36608] Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows UPnP AddPortMapping to forwar…

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows UPnP AddPortMapping to forward external ports to the router's own admin interface by accepting its own IP (192.168.1.1) or localhost (127.0.0.1) as InternalClient. An unauthenticated LAN attacker can expose the admin panel to the internet with a single SOAP request.

nvdaltovulnerabilidad CVSS 8.8 NVD

J Alto vulnerabilidad

03/06/2026

[CVE-2026-6657] A vulnerability in jupyter-server versions 1.12.0 through 2.17.0 allows an attacker to bypass CORS o…

A vulnerability in jupyter-server versions 1.12.0 through 2.17.0 allows an attacker to bypass CORS origin validation when the `allow_origin_pat` configuration is used. The issue arises from the use of `re.match()` for validating the `Origin` header, which only anchors at the start of the string. This allows attacker-controlled domains such as `trusted.example.com.evil.com` to pass validation again…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

03/06/2026

[CVE-2026-37462] An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows …

An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

nvdaltovulnerabilidad CVSS 7.5 NVD