Known vulnerabilities in Red Hat Enterprise Linux 9

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CVE list

CVE	Summary	Score	Published
CVE-2026-3593	A use-after-free vulnerability exists within the DNS-over-HTTPS implementation	7.4 High	May 20, 2026
CVE-2026-3039	BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive…	7.5 High	May 20, 2026
CVE-2026-29518	Rsync versions before 3.4.3 contain a time-of-check to time-of-use (TOCTOU) race condition in daemon file handling…	7.3 High	May 20, 2026
CVE-2026-44390	NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets…	6.9 Medium	May 20, 2026
CVE-2026-42959	NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that…	8.7 High	May 20, 2026
CVE-2026-42944	NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a vulnerability that results in heap overflow when…	8.7 High	May 20, 2026
CVE-2026-42534	NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its…	6.9 Medium	May 20, 2026
CVE-2026-41292	NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to a degradation of service attack related to…	6.6 Medium	May 20, 2026
CVE-2026-33278	NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables…	9.1 Critical	May 20, 2026
CVE-2026-9064	389-ds-base: 389-ds-base: unbounded ldap controls count in get_ldapmessage_controls_ext() causes cpu and heap amplification (remote dos)	7.5 High	May 20, 2026
CVE-2026-47783	In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because…	8.1 High	May 20, 2026
CVE-2026-43618	Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit…	6.1 Medium	May 20, 2026
CVE-2026-8975	Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150	8.8 High	May 19, 2026
CVE-2026-8973	Memory safety bugs present in Thunderbird 150	8.8 High	May 19, 2026
CVE-2026-8948	Same-origin policy bypass in the DOM: Networking component	9.1 Critical	May 19, 2026
CVE-2026-8947	Use-after-free in the DOM: Bindings (WebIDL) component	7.3 High	May 19, 2026
CVE-2026-8946	Incorrect boundary conditions in the Audio/Video: Web Codecs component	7.5 High	May 19, 2026
CVE-2026-8945	Sandbox escape in Firefox and Firefox Focus for Android	7.5 High	May 19, 2026
CVE-2026-42009	Gnutls: gnutls: denial of service via dtls packet reordering vulnerability	7.5 High	May 18, 2026
CVE-2026-45736	ws is an open source WebSocket client and server for Node.js	4.4 Medium	May 15, 2026
CVE-2026-46333	In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The…	7.1 High	May 15, 2026
CVE-2025-54518	Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to…	7.3 High	May 15, 2026
CVE-2026-44673	libyang is a YANG data modeling language library	7.5 High	May 14, 2026
CVE-2026-6478	Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover…	6.5 Medium	May 14, 2026
CVE-2026-6477	Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(),…	8.8 High	May 14, 2026

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