https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2023-50784.htmlhttps://patchthecve.com/cve/CVE-2023-50784.htmlWed, 17 Jun 2026 06:39:58 +0000HIGH 7.5: A buffer overflow in websockets in UnrealIRCd 6.1.0 through 6.1.3 before 6.1.4 allows an unauthenticated remote attacker to crash the server by sending an oversized packet (if a websocket port is open). Remote code execution might be possible on some uncommon, older platforms.https://patchthecve.com/cve/CVE-2017-13649.htmlhttps://patchthecve.com/cve/CVE-2017-13649.htmlWed, 17 Jun 2026 01:04:56 +0000MEDIUM 5.5: UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command. NOTE: thhttps://patchthecve.com/cve/CVE-2016-7144.htmlhttps://patchthecve.com/cve/CVE-2016-7144.htmlWed, 17 Jun 2026 00:52:40 +0000HIGH 8.1: The m_authenticate function in modules/m_sasl.c in UnrealIRCd before 3.2.10.7 and 4.x before 4.0.6 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.https://patchthecve.com/cve/CVE-2013-7384.htmlhttps://patchthecve.com/cve/CVE-2013-7384.htmlWed, 17 Jun 2026 00:01:52 +0000MEDIUM 5.0: UnrealIRCd 3.2.10 before 3.2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors, related to SSL. NOTE: this issue was SPLIT from CVE-2013-6413 per ADT2 due to different vulnerability types.https://patchthecve.com/cve/CVE-2013-6413.htmlhttps://patchthecve.com/cve/CVE-2013-6413.htmlWed, 17 Jun 2026 00:00:26 +0000MEDIUM 5.0: Use-after-free vulnerability in UnrealIRCd 3.2.10 before 3.2.10.2 allows remote attackers to cause a denial of service (crash) via unspecified vectors. NOTE: this identifier was SPLIT per ADT2 due to different vulnerability types. CVE-2013-7384 was assigned for the NULL pointer dereference.https://patchthecve.com/cve/CVE-2010-2075.htmlhttps://patchthecve.com/cve/CVE-2010-2075.htmlTue, 16 Jun 2026 23:19:56 +0000HIGH 7.5: UnrealIRCd 3.2.8.1, as distributed on certain mirror sites from November 2009 through June 2010, contains an externally introduced modification (Trojan Horse) in the DEBUG3_DOLOG_SYSTEM macro, which allows remote attackers to execute arbitrary commands.https://patchthecve.com/cve/CVE-2009-4893.htmlhttps://patchthecve.com/cve/CVE-2009-4893.htmlTue, 16 Jun 2026 23:14:33 +0000MEDIUM 6.8: Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.