CVE-2026-63387

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

CVE-2026-63387

libevent <2.1.13 and

EUVD-2026-63508

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

CVE-2026-70465

A buffer copy without checking size of input 'classic buffer overflow' vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute...

CVE-2026-70465

Fortinet FortiClientWindows is affected by CVE-2026-70465 due to a buffer copy without input size checking (classic buffer overflow). Affected versions are FortiClientWindows 7.4.0–7.4.3 and FortiClientWindows 7.2.0–7.2.11. The vulnerability could allow an unauthenticated attacker to alter or cra...

CVE-2026-70465

A buffer copy without checking size of input 'classic buffer overflow' vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute...

PT-2026-71058

Name of the Vulnerable Software and Affected Versions FortiClientWindows versions 7.4.0 through 7.4.3 FortiClientWindows versions 7.2.0 through 7.2.11 Description A classic buffer overflow occurs due to a buffer copy operation that does not verify the size of the input. This allows an...

PT-2026-76584

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsname to labels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdns server request format response. The final-label...

OESA-2026-3158 mtr security update

It is a network diagnostic tool,it has the "ping" and "traceroute" features. It prints information about the route and packets that sent from the host to the specified destination system.This tool can also print the response times and percentage for all network hops between the systems. Security...

unbound: Unbound: Denial of Service via crafted DNS responses with expired records

A flaw in Unbound allows a remote attacker controlling a delegated domain to trigger a NULL pointer dereference and crash the daemon. Exploitation occurs when serve-expired: yes and specific response-ip or RPZ rules are configured, resulting in a denial of service...

RLSA-2026:42733 Moderate: glibc security update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fixes: glibc:...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

RockyLinux 8 : glibc (RLSA-2026:42733)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:42733 advisory. glibc: glibc: Information disclosure or denial of service via ungetwc function with specific wide character encodings CVE-2026-5928 glibc: glibc:...

glibc: glibc: Application crash or uninitialized memory read via crafted DNS response

A flaw was found in glibc GNU C Library. The deprecated functions nsprintrrf, nsprintrr, and fpnquery do not properly validate the length of RDATA Resource Record Data in a DNS Domain Name System response when processing specific record types like LOC, CERT, TKEY, or TSIG. A remote attacker could...

RHEL 10 : glibc (RHSA-2026:42694)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:42694 advisory. The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name...

Moderate: glibc security update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fixes: glibc:...

Moderate: glibc security update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fixes: glibc:...

CVE-2026-47703

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dnsid=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response...

CVE-2026-14461

The CVE-2026-14461 entry affects mtr up to version 0.96, where ipinfo_lookup() performs DNS AS lookups and can be triggered by a TXT response larger than 512 bytes with a crafted compression pointer, causing an out-of-bounds read. The function uses the response length as the end-of-message bounda...