CVE-2026-75806

Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead. Impact summary: An attacker who can send a datagram that is rout...

CVE-2026-75806 Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS

Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead. Impact summary: An attacker who can send a datagram that is rout...

CVE-2023-24291

A flaw was found in Portable Puzzle Collection. A buffer overflow vulnerability exists when processing the record length parameter. A local attacker could exploit this flaw, with high attack complexity, to trigger a denial of service, making the application unavailable. Mitigation Mitigation for...

CVE-2023-24291

Portable Puzzle Collection before 20230116.5782e29 was discovered to contain a buffer overflow via the record length parameter...

EUVD-2023-60647

Portable Puzzle Collection before 20230116.5782e29 was discovered to contain a buffer overflow via the record length parameter...

CVE-2023-24291

Portable Puzzle Collection before 20230116.5782e29 was discovered to contain a buffer overflow via the record length parameter...

CVE-2023-24291

Portable Puzzle Collection before 20230116.5782e29 was discovered to contain a buffer overflow via the record length parameter...

CVE-2023-24291: sgt-puzzles -- security update

Portable Puzzle Collection before 20230116.5782e29 was discovered to contain a buffer overflow via the record length parameter...

RLSA-2026:55679 Important: haproxy security update

The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fixes: haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions CVE-2026-55204 haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record...

CVE-2026-42494

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver derives several lengths directly from attacker-controlled on-disk fields without validating them:...

EUVD-2026-47705

If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit. BIND will first need to store a DNS record for a key KEY, DNSKEY, etc.. That key must specify a PRIVATEDNS algorithm 253, and in the algorithm identifier,...

CVE-2026-48487

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.16, readcharacterstring and readstring in src/zeroconf/protocol/incoming.py advanced self.offset by attacker-declared RDLENGTH without checking it against self.datalen, allowing unauthenticated hosts on th...

USN-8542-1: Dnsmasq vulnerabilities

Yiwei Hou discovered that Dnsmasq incorrectly handled logging of DS or DNSKEY. A remote attacker could possibly use this issue to cause a denial of service. CVE-2026-12725 It was discovered that Dnsmasq incorrectly validated the length of fixed-length DNS record fields when parsing NS section...

BIT-HAPROXY-2026-55203 HAProxy - Integer Overflow in FCGI Demux Record Length Field

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

HAProxy - Integer Overflow in FCGI Demux Record Length Field

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UBUNTU-CVE-2026-6679

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This...

PT-2026-51425

Zephyr's ext2 directory-entry parser does not fully validate on-disk directory entry structure before copying the entry name and advancing traversal state. In ext2 fetch direntry subsys/fs/ext2/ext2 diskops.c, the code only checks de name len = EXT2 MAX FILE NAME and then copies the name with...

CVE-2026-55203

HAProxy

CVE-2026-55203 HAProxy - Integer Overflow in FCGI Demux Record Length Field

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

RockyLinux 10 : dnsmasq (RLSA-2026:19158)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19158 advisory. dnsmasq: dnsmasq: heap buffer overflow in cache via NAMEESCAPE expansion CVE-2026-2291 dnsmasq: NSEC bitmap parsing infinite loop CVE-2026-4890 dnsmasq...