Unrated severityNVD Advisory· Published Mar 24, 2026· Updated Mar 27, 2026
LibVNCServer httpd proxy NULL Pointer Dereference
CVE-2026-32854
Description
LibVNCServer versions 0.9.15 and prior (fixed in commit dc78dee) contain null pointer dereference vulnerabilities in the HTTP proxy handlers within httpProcessInput() in httpd.c that allow remote attackers to cause a denial of service by sending specially crafted HTTP requests. Attackers can exploit missing validation of strchr() return values in the CONNECT and GET proxy handling paths to trigger null pointer dereferences and crash the server when httpd and proxy features are enabled.
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Affected products
11<=0.9.15+ 1 more
- (no CPE)range: <=0.9.15
- (no CPE)range: 0
- osv-coords9 versionspkg:rpm/opensuse/LibVNCServer&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/LibVNCServer&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/LibVNCServer&distro=openSUSE%20Tumbleweedpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7
< 0.9.14-150600.3.6.1+ 8 more
- (no CPE)range: < 0.9.14-150600.3.6.1
- (no CPE)range: < 0.9.14-160000.4.1
- (no CPE)range: < 0.9.15-2.1
- (no CPE)range: < 0.9.14-150600.3.6.1
- (no CPE)range: < 0.9.9-17.44.1
- (no CPE)range: < 0.9.14-160000.4.1
- (no CPE)range: < 0.9.14-160000.4.1
- (no CPE)range: < 0.9.9-17.44.1
- (no CPE)range: < 0.9.14-150600.3.6.1
Patches
Vulnerability mechanics
References
3News mentions
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