CVE-2014-9403
The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote...
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-after-delete" error.
Exploit likelihood
What each source reports
NVD Score used
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-after-delete" error.
- Record
CVE-2014-9403- CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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-after-delete" error.
- Record
CVE-2014-9403- Updated
- 2026-11-02
EUVDEUVD-2014-9224 No score
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-after-delete" error.
- Record
EUVD-2014-9224- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7cjq-452g-rg6q No score
The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote...
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-after-delete" error.
- Record
GHSA-7cjq-452g-rg6q- Updated
- 2026-11-02
OSV No score
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-after-delete" error.
- Record
CVE-2014-9403- Updated
- 2026-11-02
OSVDEBIAN-CVE-2014-9403 No score
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-after-delete" error.
- Record
DEBIAN-CVE-2014-9403- Updated
- 2026-11-02
OSVMGASA-2014-0543 No score
Updated znc package fixes CVE-2014-9403
Updated znc packages fix security vulnerability:
Adding an already existing channel to a user/network via web admin in ZNC causes a crash if the channel name isn't prefixed with '#' (CVE-2014-9403).
- Record
MGASA-2014-0543- Updated
- 2026-11-02
OSVUBUNTU-CVE-2014-9403 No score
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-after-delete" error.
- Record
UBUNTU-CVE-2014-9403- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zncDebian:12 |
before 1.2-4 | 1.2-4 |
zncDebian:13 |
before 1.2-4 | 1.2-4 |
zncDebian:14 |
before 1.2-4 | 1.2-4 |
zncMageia:4 |
before 1.0-4.1.mga4 | 1.0-4.1.mga4 |
zncUbuntu:14.04:LTS |
before 1.2-3ubuntu0.1, plus listed versions 1.0-51.0-5build11.2-11.2-21.2-31.2-3build1 |
1.2-3ubuntu0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2014-9403 is a medium vulnerability (CVSS 4.0) in Znc, published December 19, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.16%, the 82nd percentile. Fixed in znc 1.2-4.
References
advisories.mageia.org/MGASA-2014-0543.html
github.com/znc/znc/issues/528
mandriva.com/security/advisories?name=MDVSA-2015:013
openwall.com/lists/oss-security/2014/12/18/2
securityfocus.com/bid/66926
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secunia.com/advisories/57795
nvd.nist.gov/vuln/detail/CVE-2014-9403
security-tracker.debian.org/tracker/CVE-2014-9403
bugs.mageia.org/show_bug.cgi?id=14855
gentoo.org/security/en/glsa/glsa-201412-31.xml
ubuntu.com/security/CVE-2014-9403
cve.org/CVERecord?id=CVE-2014-9403