CVE-2026-11352

A vulnerability exists in the QUIC UDP receive function of curl and libcurl , allowing a malicious HTTP/3 server to trigger a remote denial of service (DoS). The root cause is a helper function that discards zero-length UDP datagrams before they are counted toward the per-call packet budget. Cons...

CVE-2026-11352 QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

CVE-2026-11352 QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

CVE-2026-55950

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

EUVD-2026-41414

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

curl: libcurl: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability

A flaw was found in curl and libcurl. A malicious HTTP/3 server can exploit an issue in the QUIC UDP receive function by continuously streaming empty UDP datagrams. This can lead to a remote denial of service DoS against a curl or libcurl client, as the helper function discards zero-length UDP...

Curl 8.18.0 < 8.21.0 QUIC Zero-Length UDP Datagrams DoS

The version of curl installed on the remote host is 8.18.0 prior to 8.21.0. It is, therefore, affected by a denial of service vulnerability: - An issue in curl's QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service by continuously streaming empty...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkqueue: perform a shared-unconfirmed check before segmentation. Ulrich reports a regression with nfqueue: If an application does not set the ‘FGSO’ capability flag, and a gso packet with an unconfirmed nfconn...

UBUNTU-CVE-2026-11352

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

curl: libcurl: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability

A flaw was found in curl and libcurl. A malicious HTTP/3 server can exploit an issue in the QUIC UDP receive function by continuously streaming empty UDP datagrams. This can lead to a remote denial of service DoS against a curl or libcurl client, as the helper function discards zero-length UDP...

QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

CURL-CVE-2026-11352 QUIC zero-length UDP datagrams busy-loop

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

CVE-2026-45180

Catalyst::Plugin::Statsd versions through 0.10.0 for Perl may leak session ids. If the communication channel to the statsd daemon is not secured for example, by sending UDP packets to a host on another network, then users' session ids may be leaked. This may allow an attacker to use session ids a...

curl: CVE-2026-11352: QUIC zero-length UDP datagrams busy-loop

Summary: curl's QUIC UDP receive helper ignores zero-length UDP datagrams before counting them against the per-call packet budget. On Linux, recvmmsgpackets loops while pkts maxpkts, but if!mmsgi.msglen continue; runs before pkts is incremented. The recvmsgpackets backend has the same no-progress...

PT-2026-51740

Name of the Vulnerable Software and Affected Versions cURL affected versions not specified libcurl affected versions not specified Description An issue in the QUIC UDP receive function allows a remote malicious HTTP/3 server to cause a denial of service. The helper function fails to count...

CVE-2026-48683

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read vulnerability in the NetFlow v9 data flowset processor. In src/netflowplugin/netflowv9collector.cpp, the Data template branch lines 1695-1702 iterates over flow records without performing a per-iteration bounds check agains...

EUVD-2026-31839

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read vulnerability in the NetFlow v9 data flowset processor. In src/netflowplugin/netflowv9collector.cpp, the Data template branch lines 1695-1702 iterates over flow records without performing a per-iteration bounds check agains...

CVE-2026-48683

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read vulnerability in the NetFlow v9 data flowset processor. In src/netflowplugin/netflowv9collector.cpp, the Data template branch lines 1695-1702 iterates over flow records without performing a per-iteration bounds check agains...

CVE-2026-48683

FastNetMon Community Edition versions through 1.2.9 are vulnerable to an out-of-bounds read in the NetFlow v9 data flowset processor . The root cause is located in src/netflow_plugin/netflow_v9_collector.cpp, where the Data template branch (lines 1695-1702) fails to perform a per-iteration bounds...

CVE-2026-48683

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read vulnerability in the NetFlow v9 data flowset processor. In src/netflowplugin/netflowv9collector.cpp, the Data template branch lines 1695-1702 iterates over flow records without performing a per-iteration bounds check agains...