https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2020-13775.htmlhttps://patchthecve.com/cve/CVE-2020-13775.htmlWed, 17 Jun 2026 02:53:38 +0000MEDIUM 6.5: ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.https://patchthecve.com/cve/CVE-2010-2488.htmlhttps://patchthecve.com/cve/CVE-2010-2488.htmlTue, 16 Jun 2026 23:20:50 +0000HIGH 7.5: NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthenticated connections.https://patchthecve.com/cve/CVE-2019-12816.htmlhttps://patchthecve.com/cve/CVE-2019-12816.htmlWed, 17 Jun 2026 02:15:32 +0000HIGH 8.8: Modules.cpp in ZNC before 1.7.4-rc1 allows remote authenticated non-admin users to escalate privileges and execute arbitrary code by loading a module with a crafted name.https://patchthecve.com/cve/CVE-2019-9917.htmlhttps://patchthecve.com/cve/CVE-2019-9917.htmlWed, 17 Jun 2026 02:44:50 +0000MEDIUM 6.5: ZNC before 1.7.3-rc1 allows an existing remote user to cause a Denial of Service (crash) via invalid encoding.https://patchthecve.com/cve/CVE-2018-14056.htmlhttps://patchthecve.com/cve/CVE-2018-14056.htmlWed, 17 Jun 2026 01:40:34 +0000MEDIUM 5.3: ZNC before 1.7.1-rc1 is prone to a path traversal flaw via ../ in a web skin name to access files outside of the intended skins directories.https://patchthecve.com/cve/CVE-2018-14055.htmlhttps://patchthecve.com/cve/CVE-2018-14055.htmlWed, 17 Jun 2026 01:40:33 +0000MEDIUM 6.5: ZNC before 1.7.1-rc1 does not properly validate untrusted lines coming from the network, allowing a non-admin user to escalate his privilege and inject rogue values into znc.conf.https://patchthecve.com/cve/CVE-2014-9403.htmlhttps://patchthecve.com/cve/CVE-2014-9403.htmlWed, 17 Jun 2026 00:18:18 +0000MEDIUM 4.0: The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) by adding a channel with the same name as an existing channel but without the leading # character, related to a "use-afterhttps://patchthecve.com/cve/CVE-2013-2130.htmlhttps://patchthecve.com/cve/CVE-2013-2130.htmlTue, 16 Jun 2026 23:52:48 +0000MEDIUM 4.0: ZNC 1.0 allows remote authenticated users to cause a denial of service (NULL pointer reference and crash) via a crafted request to the (1) editnetwork, (2) editchan, (3) addchan, or (4) delchan page in modules/webadmin.cpp.https://patchthecve.com/cve/CVE-2010-2934.htmlhttps://patchthecve.com/cve/CVE-2010-2934.htmlTue, 16 Jun 2026 23:21:46 +0000MEDIUM 5.0: Multiple unspecified vulnerabilities in ZNC 0.092 allow remote attackers to cause a denial of service (exception and daemon crash) via unknown vectors related to "unsafe substr() calls."https://patchthecve.com/cve/CVE-2010-2812.htmlhttps://patchthecve.com/cve/CVE-2010-2812.htmlTue, 16 Jun 2026 23:21:33 +0000MEDIUM 5.0: Client.cpp in ZNC 0.092 allows remote attackers to cause a denial of service (exception and daemon crash) via a PING command that lacks an argument.