CVE-2025-5994

A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., '--enable-subnet', AND configured to send ECS information along with queries to...

CVE-2025-5994

CVE-2025-5994 describes a rebirthday cache-poisoning risk in ECS-enabled caching resolvers. Affected product: Unbound (if built with ECS support and configured to send ECS data upstream). Root cause: need to segregate outgoing queries by ECS info; otherwise an attacker could exploit DNS transacti...

CVE-2025-5994 Cache poisoning via the ECS-enabled Rebirthday Attack

A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., '--enable-subnet', AND configured to send ECS information along with queries to...

CVE-2025-40776

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

ALPINE-CVE-2025-40776

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

CVE-2025-40776

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

CVE-2025-40776

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

CVE-2025-40776

CVE-2025-40776 affects ISC BIND named caching resolvers that are configured to send EDNS Client Subnet (ECS) options. The vulnerability is a potential cache-poisoning issue in the resolver when ECS is present. Affected BIND 9 versions are 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S...

CVE-2025-40776 Birthday Attack against Resolvers supporting ECS

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

CVE-2025-40776 Birthday Attack against Resolvers supporting ECS

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

CVE-2025-40776

A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1...

ISC BIND 9 安全漏洞

ISC BIND 9 is a Domain Name System software from the ISC organization. A security vulnerability exists in ISC BIND 9 that stems from vulnerability to cache poisoning attacks. The following versions are affected: versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1...

NLnet Unbound 安全漏洞

NLnet Unbound is an open source DNS server from the Dutch NLnet team. A security vulnerability exists in NLnet Unbound that stems from a risk of cache poisoning when supporting EDNS Client Subnet, which could lead to a Rebirthday attack...

PT-2025-29825 · Isc · Bind

Name of the Vulnerable Software and Affected Versions: BIND 9 versions 9.11.3-S1 through 9.16.50-S1 BIND 9 versions 9.18.11-S1 through 9.18.37-S1 BIND 9 versions 9.20.9-S1 through 9.20.10-S1 Description: A named caching resolver configured to send ECS EDNS Client Subnet options may be vulnerable ...

PT-2025-29837 · Nlnet +7 · Unbound +7

Name of the Vulnerable Software and Affected Versions: Unbound affected versions not specified Description: A multi-vendor cache poisoning vulnerability, named 'Rebirthday Attack', has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is vulnerable when compiled wi...

unbound -- Cache poisoning via the ECS-enabled Rebirthday Attack

[email protected] reports: A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., '--enable-subnet', AND configured to send ECS information...

📄 Discourse 3.2.x Anonymous Cache Poisoning

Discourse versions 3.1.x and 3.2.x suffer from an anonymous cache poisoning vulnerability. !/usr/bin/env python3 """ Exploit Title: Discourse 3.2.x - Anonymous Cache Poisoning Date: 2024-10-15 Exploit Author: ibrahimsql Github: : https://github.com/ibrahmsql Vendor Homepage: https://discourse.org...

Discourse 3.2.x - Anonymous Cache Poisoning

!/usr/bin/env python3 """ Exploit Title: Discourse 3.2.x - Anonymous Cache Poisoning Date: 2024-10-15 Exploit Author: ibrahimsql Github: : https://github.com/ibrahmsql Vendor Homepage: https://discourse.org Software Link: https://github.com/discourse/discourse Version: Discourse latest patched...

Cache Poisoning

Next.js is vulnerable to cache poisoning. The vulnerability is due to HTML page requests returning a React Server Component RSC payload under certain conditions, which allows an attacker to poison the cache if the CDN does not correctly differentiate between RSC and HTML content...

Cache Poisoning

Next.js is vulnerable to Cache Poisoning. The vulnerability is due to improper caching of HTTP 204 responses for static pages, which allows an attacker to poison the cache and cause the 204 response to be served to all users attempting to access the affected page...