Fedora 44 : nsd (2026-bf1539678e)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-bf1539678e advisory. BUG FIXES: Fix for CVE-2026-18664: IP range access control restrictions are bypassed for some unintended IP. Thanks to Qifan Zhang, Palo Alto Networ...

Fedora 43 : nsd (2026-3ff003d397)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3ff003d397 advisory. BUG FIXES: Fix for CVE-2026-18664: IP range access control restrictions are bypassed for some unintended IP. Thanks to Qifan Zhang, Palo Alto Networ...

CLSA-2026-1788539811 rsync: Fix of 4 CVEs

CVE-2026-53784: resolve an absolute daemon path one component at a time with an ONOFOLLOW dirfd per level so a planted symlink cannot steer the daemon CWD outside the module when "use chroot = no" - CVE-2026-53791: require the direct peer to match the new "proxy protocol hosts" list before a...

EUVD-2026-66376

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

Exim PROXY Protocol DoS

The vulnerability of the PROXY protocol parser of the Exim mail server is related to the lack of checks for verifying that the value is within the minimum range. Exploiting this vulnerability could allow a malicious actor to cause service failures...

Linux Distros Unpatched Vulnerability : CVE-2026-19538

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TL...

CVE-2026-19538

A flaw was found in nsd. A remote attacker can bypass BLOCKED access control list ACL items on the proxy protocol port. This bypass occurs when connecting over TCP or TLS and sending the query twice on a persistent connection. This could allow unauthorized access or actions that should have been...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

DEBIAN-CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

UBUNTU-CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538 Bypass of BLOCKED ACL items on proxy protocol port over TCP or TLS

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538 Bypass of BLOCKED ACL items on proxy protocol port over TCP or TLS

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538

This vulnerability affects NSD (NLnet Labs' DNS server daemon). BLOCKED access control list items on the proxy protocol port can be completely bypassed by connecting over TCP or TLS and sending the query twice on a single kept-open connection. The CVSS 4.0 score is 8.2 (HIGH) , with primary impac...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

PT-2026-82048

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...

CVE-2026-19538: Authentication Bypass by Spoofing

The BLOCKED access control list items that are evaluated to deny access on the the proxy protocol port can be bypassed completely when connecting over TCP or TLS and sending the query twice on connection that is kept open...