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CVE-2026-53228

ipv6: sit: reload inner IPv6 header after GSO offloads

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For GSO skbs, iptunnel_handle_offloads() calls skb_header_unclone(). When the skb header is cloned, skb_header_unclone() can call pskb_expand_head(), which may move the skb head. The pskb_expand_head() contract requires pointers into the skb header to be reloaded after the call. If the later skb_realloc_headroom() branch is not taken, SIT uses the stale iph6 pointer to read the inner hop limit and DS field. That can read from a freed skb head after the old head's remaining clone is released. Reload iph6 after the offload helper succeeds and before subsequent reads from the inner IPv6 header. Keep the existing reload after skb_realloc_headroom(), since that branch can also replace the skb.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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CVE-2026-53399

nfsd: release layout stid on setlease failure

In the Linux kernel, the following vulnerability has been resolved: nfsd: release layout stid on setlease failure nfs4_alloc_stid() publishes the new stid into cl->cl_stateids via idr_alloc_cyclic() under cl_lock before returning to nfsd4_alloc_layout_stateid(). When nfsd4_layout_setlease() then fails, the error path frees the layout stateid directly with kmem_cache_free() without ever calling idr_remove(), leaving the IDR slot pointing at freed slab memory. Any subsequent IDR walker (states_show, client teardown) dereferences the dangling pointer. The correct teardown for an IDR-published stid is nfs4_put_stid(), which removes the IDR slot under cl_lock, dispatches sc_free (nfsd4_free_layout_stateid) to release ls->ls_file via nfsd4_close_layout(), and drops the nfs4_file reference in its tail. A second issue blocks that switch: nfsd4_free_layout_stateid() unconditionally inspects ls->ls_fence_work via delayed_work_pending() under ls_lock, but INIT_DELAYED_WORK(&ls->ls_fence_work, ...) currently runs only after the setlease call. On the setlease-failure path the destructor would touch an uninitialized delayed_work. nfsd4_alloc_layout_stateid() nfs4_alloc_stid() /* idr_alloc_cyclic under cl_lock */ nfsd4_layout_setlease() /* fails */ nfs4_put_stid() nfsd4_free_layout_stateid() delayed_work_pending(&ls->ls_fence_work) /* needs INIT */ nfsd4_close_layout() /* nfsd_file_put(ls->ls_file) */ put_nfs4_file() Fix by hoisting the ls_fenced / ls_fence_delay / INIT_DELAYED_WORK initialization above the nfsd4_layout_setlease() call, and replace the manual nfsd_file_put + put_nfs4_file + kmem_cache_free cleanup with a single nfs4_put_stid(stp).

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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CVE-2026-43831

A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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Products
CVE-2026-43832

A stack-based buffer overflow vulnerability in the Cookie parsing methods could allow an unauthenticated attacker to achieve code execution when the SafeEnhancement feature is enabled.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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Products
CVE-2026-18315

TrueBooker <= 1.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to Account Takeover to 'truebooker_wp_user_id' Parameter

The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key leading to Account Takeover in all versions up to, and including, 1.2.6. This is due to the admin_user_create_cus AJAX handler lacking any authentication or capability check before passing the attacker-supplied truebooker_wp_user_id parameter directly to wp_update_user. This makes it possible for unauthenticated attackers to overwrite the email address of any WordPress user — including an administrator — and then complete the standard WordPress lost-password flow to fully take over the targeted account.

CVSS 3.1 · 9.8 Critical EPSS 3.0% KEV · Not listed
CVE-2026-79608

x86/AMD: ineffectual Zenbleed workaround

The workaround for XSA-433 (Zenbleed, CVE-2023-20593) was later re-worked to better integrate with other manipulations of the same MSR. In this rework an inverted conditional was introduced, resulting in the workaround to not be applied when needed and vice versa. For more details, see: http://xenbits.xen.org/xsa/advisory-433.html

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Xen
Products
Xen
CVE-2026-76466

Cisco Expressway Series Remote Code Execution Vulnerability

A vulnerability in the database service feature of Cisco Expressway Series could allow an unauthenticated, remote attacker with network access to a Cisco Expressway device to execute arbitrary operating system commands as&nbsp;root. This vulnerability is due to the use of persistent cookies. Additionally, there is insufficient validation of client certificates when the TLS Verify Mode is set to Enabled for clustering, which means that client certificates are not validated. An attacker with possession of the cookies could exploit this vulnerability by connecting to the database service and invoking specific remote procedure call (RPC) commands. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying operating system of an affected device. Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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CVE-2026-110063

VM Inspector for Azure Virtual Machines Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in VM Inspector for Azure Virtual Machines allows an unauthorized attacker to elevate privileges over a network.

CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed
Vendors
CVE-2026-105014

Azure Pipelines Remote Code Execution Vulnerability

Improper neutralization of special elements used in a command ('command injection') in Azure Pipelines allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-101634

Unauthenticated Access and Denial of Service via HTTP in Oracle Mobile Field Service

Vulnerability in the Oracle Mobile Field Service product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Mobile Field Service. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Mobile Field Service accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Mobile Field Service. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
CVE-2026-33789

Junos OS and Junos OS Evolved: With BGP Monitoring Protocol is enabled, receipt of a specifically crafted BGP route update results in denial of service

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated BGP peer to cause a denial of service and potential root-level command execution via crafted BGP route updates when the BGP Monitoring Protocol (BMP) is enabled.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
CVE-2026-33792

Junos OS: SRX Series: An attacker causes remote code execution and denial of service when a GRE tunnel is configured

A Stack-based Buffer Overflow vulnerability in the srxpfe process of Juniper Networks Junos OS on SRX Series allows an unauthenticated network attacker to execute code as root or cause a denial of service via a crafted packet received on a configured GRE tunnel.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Products
CVE-2026-33796

Junos OS and Junos OS Evolved: An attacker causes remote root command execution when BMP route monitoring is enabled

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured external BGP neighbor to execute arbitrary commands with root privileges via BMP route monitoring.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
CVE-2026-77930

EvoScientist 0.1.0 before 0.2.5 Human Approval Bypass via Async Sub-Agents

EvoScientist 0.1.0 before 0.2.5 contains an approval bypass vulnerability that allows attackers to run host shell commands by delegating them to async sub-agents lacking an interrupt_on gate. Attackers can plant instructions in ingested content such as fetched web pages, so the agent calls start_async_task and runs commands with user privileges and environment secrets.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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Products
CVE-2026-113390

DrayTek Vigor2960 CGI mainfunction.cgi sub_182B0 os command injection

A flaw has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. Affected by this issue is the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of the component CGI Interface. This manipulation of the argument usefile/usescript/option causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)". This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 4.0 · 9.4 Critical EPSS 1.9% KEV · Not listed
Vendors
CVE-2026-112370

H3C Magic NX15 usrlist sub_416874 os command injection

A vulnerability was found in H3C Magic NX15 100R017. This issue affects the function sub_416874 of the file /usr/bin/usrlist. Performing a manipulation results in os command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

CVSS 4.0 · 9.4 Critical EPSS 2.0% KEV · Not listed
Vendors
H3c
CVE-2026-109444

OpenSRE through 0.1.2026.10.19 Approval Gate Bypass via shell_run Prompt Injection

OpenSRE through 0.1.2026.10.19 contains an approval gate bypass vulnerability that allows attackers to execute shell_run commands without confirmation because the headless presenter's execution_allowed() always returns True. Attackers can inject instructions into alerts or Slack messages triaged by the agent to run commands on the host and exfiltrate LLM, Slack and cloud credentials.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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CVE-2026-102893

Zulip: OpenID Connect authentication ignores the email_verified claim

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's delivery_email without rejecting an explicitly false email_verified claim. If a configured identity provider returns an email address that the authenticating user does not control together with email_verified=false, Zulip can log the user into the existing account for that address. Exploitation requires a misconfigured trusted identity provider, and deployments whose authoritative identity provider only emits email addresses controlled by the authenticating user are not affected. This issue is fixed in version 12.2.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-101997

Junos OS: SRX Series: A network-based attacker causes Remote Code Execution when Security Intelligence is used without a tls-profile authentication

An Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ipfd of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a configured Security Intelligence feed connection.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Products
CVE-2026-74902

SiYuan before v3.7.4 XSS-to-RCE via malicious filename upload

SiYuan before v3.7.4 contains a cross-site scripting vulnerability in the file upload validation flow that fails to escape filenames before inserting them into HTML via insertAdjacentHTML. Attackers can craft a malicious filename containing script payloads that execute with full OS command access when a user drags, drops, or pastes the file into the editor.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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