CVE-2026-32853

EUVD-2026-14930
LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e) contain a heap out-of-bounds read vulnerability in the UltraZip encoding handler that allows a malicious VNC server to cause information disclosure or application crash. Attackers can exploit improper bounds checking in the HandleUltraZipBPP() function by manipulating subrectangle header counts to read beyond the allocated heap buffer.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
Affected Products (NVD)
VendorProductVersion
libvncserver_projectlibvncserver
𝑥
< 0.9.15
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
libvnc_projectlibvncserver
𝑥
≤ 0.9.15
CNA
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
LibVNCServer-devel
suse enterprise server 12 SP5
0.9.9-17.44.1
fixed
libvncclient0
suse enterprise server 12 SP3
0.9.9-17.44.1
fixed
suse enterprise server 12 SP5
0.9.9-17.44.1
fixed
libvncclient1
suse enterprise desktop 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise sap 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise server 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise workstation 15 SP7
0.9.14-150600.3.6.1
fixed
libvncserver0
suse enterprise server 12 SP3
0.9.9-17.44.1
fixed
suse enterprise server 12 SP5
0.9.9-17.44.1
fixed
libvncserver1
suse enterprise desktop 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise sap 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise server 15 SP7
0.9.14-150600.3.6.1
fixed
suse enterprise workstation 15 SP7
0.9.14-150600.3.6.1
fixed