Heap overflow with multiple NSID, COOKIE, PADDING EDNS options

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CVE-2026-42944

A flaw was found in Unbound, a Domain Name System DNS resolver. A remote attacker could trigger a heap overflow by sending specially crafted DNS reply packets. This occurs when Unbound attempts to encode multiple Name Server Identifier NSID or Extension Mechanisms for DNS EDNS Cookie options, or...

CVE-2026-42944

NLnet Labs Unbound 1.14.0–1.25.0 is affected by a heap overflow when encoding multiple NSID and/or DNS Cookie EDNS and/or EDNS Padding options in replies. The vulnerability requires the options (nsid, answer-cookie, pad-responses) to be enabled, and a querier can trigger the overflow by attaching...

Astra Linux - уязвимость в edk2

EDK2’s Network Package is vulnerable to a buffer overflow vulnerability when handling the Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity, and/or...

CVE-2026-42944

NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a vulnerability that results in heap overflow when encoding multiple NSID and/or DNS Cookie EDNS and/or EDNS Padding options in the reply packet. The relevant options 'nsid', 'answer-cookie', 'pad-responses' default need to be enabl...

EUVD-2026-30879

A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference IDOR vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier UUID belonging to another Resource Server within the same realm,...

CVE-2026-29789

Vito is a self-hosted web application that helps manage servers and deploy PHP applications into production servers. Prior to version 3.20.3, a missing authorization check in workflow site-creation actions allows an authenticated attacker with workflow write access in one project to create/manage...

SUSE SLES12 Security Update : ovmf (SUSE-SU-2026:0196-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0196-1 advisory. - CVE-2023-45231: Fixed out of bounds read when handling a ND Redirect message with truncated options bsc1218881. - CVE-2023-45232: Fixed...

D-Link DIR-816L Buffer Overflow Vulnerability

The DIR-816L is a wireless router device from D-Link. A stack-based buffer overflow vulnerability exists in the D-Link DIR-816L version 206b09beta, which stems from the genacgimain function in the gena.cgi file improperly handling the SERVERID/HTTPSID parameter. An attacker could use this...

CVE-2025-13189

A vulnerability has been found in D-Link DIR-816L 206b09beta. This affects the function genacgimain of the file gena.cgi. The manipulation of the argument SERVERID/HTTPSID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to th...

CVE-2025-13189

A vulnerability has been found in D-Link DIR-816L 206b09beta. This affects the function genacgimain of the file gena.cgi. The manipulation of the argument SERVERID/HTTPSID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to th...

CVE-2025-13189 D-Link DIR-816L gena.cgi genacgi_main stack-based overflow

A vulnerability has been found in D-Link DIR-816L 206b09beta. This affects the function genacgimain of the file gena.cgi. The manipulation of the argument SERVERID/HTTPSID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to th...

PT-2025-47043

Name of the Vulnerable Software and Affected Versions D-Link DIR-816L version 2 06 b09 beta Description A flaw exists in the D-Link DIR-816L router, specifically within the genacgi main function of the gena.cgi script. Manipulation of the SERVER ID or HTTP SID parameters can lead to a stack-based...

CVE-2025-55086

In NetXDuo version before 6.4.4, a networking support module for Eclipse Foundation ThreadX, in the DHCPV6 client there was an unchecked index extracting the server DUID from the server reply. With a crafted packet, an attacker could cause an out of memory read...

SUSE-SU-2025:03076-1 Security update for ovmf

This update for ovmf fixes the following issues: - CVE-2023-45229: Fixed integer underflow when processing IANA/IATA options in a DHCPv6 Advertise message bsc1218879 - CVE-2023-45230: Fixed buffer overflow in the DHCPv6 client via a long Server ID option bsc1218880...

edk2: Buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message

A security flaw involving buffer overflow was identified in EDK2, the open-source reference implementation of the UEFI specification. This vulnerability enables an unauthorized attacker within the vicinity network to transmit a specifically crafted DHCPv6 proxy Advertise message, resulting in the...

edk2: Buffer overflow in the DHCPv6 client via a long Server ID option

A security flaw was identified in EDK2, the open-source reference implementation of the UEFI specification, involving a buffer overflow vulnerability. This particular weakness enables an unauthorized attacker within the vicinity of the network to transmit a specifically crafted DHCPv6 message...

edk2: Buffer overflow in the DHCPv6 client via a long Server ID option

A security flaw was identified in EDK2, the open-source reference implementation of the UEFI specification, involving a buffer overflow vulnerability. This particular weakness enables an unauthorized attacker within the vicinity of the network to transmit a specifically crafted DHCPv6 message...

AZL-39490 CVE-2023-45235 affecting package edk2 for versions less than 20230301gitf80f052277c8-40

EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or...

AZL-39106 CVE-2023-45230 affecting package edk2 for versions less than 20230301gitf80f052277c8-40

EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in DHCPv6 client. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability...