How many CVEs have a located fix in debian/libvncserver?

16 published CVEs have a fix traced to functions in debian/libvncserver, touching 7 functions across 11 files.

Which function in debian/libvncserver has been patched by the most CVEs?

rfbTightExtensionClientClose in libvncserver/tightvnc-filetransfer/rfbtightserver.c has been changed by 1 CVE fixes, from 2018 to 2018.

How large is a typical CVE fix in debian/libvncserver?

The median fix changes 9 lines. 88% of fixes change 20 lines or fewer, and 81% change a single function.

How is a fix located to a function?

The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

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#350 of 500 repositories

debian/libvncserver

Name: debian/libvncserver: functions patched by CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

Functions and files changed by CVE fixes in this repository.

Latest located fix August 21, 2026

16

CVE fixes located

Published CVEs

7

Functions patched

Distinct function sites

11

Files patched

Distinct source files

2014–2026

Years covered

By CVE publication date

Overview

16 published CVEs have a fix traced to functions in debian/libvncserver, the earliest published in 2014. Those fixes changed 7 distinct functions across 11 files, in 79 patch hunks.

Among the 500 repositories tracked here, debian/libvncserver ranks #350 by the number of CVEs with a located fix.

Most patched functions

Functions in debian/libvncserver changed by the most CVE fixes.

Most patched files

Files in debian/libvncserver changed by the most CVE fixes.

1libvncserver/rfbserver.c5 CVEs · 3 functions
2libvncclient/rfbproto.c5 CVEs · 0 functions
3libvncclient/vncviewer.c2 CVEs · 2 functions
4libvncserver/tightvnc-filetransfer/handlefiletransferrequest.c2 CVEs · 0 functions
5libvncserver/tightvnc-filetransfer/rfbtightproto.h1 CVEs · 1 functions
6libvncserver/tightvnc-filetransfer/rfbtightserver.c1 CVEs · 1 functions
7libvncclient/corre.c1 CVEs · 0 functions
8libvncclient/tight.c1 CVEs · 0 functions
9libvncclient/ultra.c1 CVEs · 0 functions
10libvncserver/tightvnc-filetransfer/filetransfermsg.c1 CVEs · 0 functions

Fix size

How much code a CVE fix in debian/libvncserver changes, with backports counted once.

9

Median lines changed

Added plus removed, per CVE

88%

Fixes of 20 lines or fewer

Share of CVE fixes

81%

Fixes in a single function

Share of CVE fixes

Latest CVEs

The most recently published CVEs with a fix located in debian/libvncserver, and the functions each fix changed.

libvncclient Tight decoder has an attacker-controlled heap out-of-bounds write
CVE-2026-50538
High · CVSS 8.8
EPSS 0.4%2026-08-21
CVE-2018-15127
CVE-2018-15127
Critical · CVSS 9.8
EPSS 15.1%2018-12-19
CVE-2018-20020
CVE-2018-20020
Critical · CVSS 9.8
EPSS 8.6%2018-12-19
CVE-2018-20022
CVE-2018-20022
High · CVSS 7.5
EPSS 2.9%2018-12-19
CVE-2018-15126
CVE-2018-15126rfbTightExtensionClientClose _rfbClientFileUpload
Critical · CVSS 9.8
EPSS 11.8%2018-12-19
CVE-2018-20024
CVE-2018-20024
High · CVSS 7.5
EPSS 3.2%2018-12-19
CVE-2018-6307
CVE-2018-6307
High · CVSS 8.1
EPSS 26.5%2018-12-19
CVE-2018-20023
CVE-2018-20023
High · CVSS 7.5
EPSS 2.5%2018-12-19
CVE-2018-20021
CVE-2018-20021
High · CVSS 7.5
EPSS 3.5%2018-12-19
CVE-2018-20019
CVE-2018-20019
Critical · CVSS 9.8
EPSS 9.5%2018-12-19
CVE-2018-7225
CVE-2018-7225
Critical · CVSS 9.8
EPSS 6.1%2018-02-19
CVE-2014-6052
CVE-2014-6052rfbInitConnection
High · CVSS 7.5
EPSS 6.8%2014-12-15

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Other repositories

Repositories with a similar number of located CVE fixes.

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Frequently asked questions

Common questions about CVE fixes in debian/libvncserver.

How many CVEs have a located fix in debian/libvncserver?: 16 published CVEs have a fix traced to functions in debian/libvncserver, touching 7 functions across 11 files.
Which function in debian/libvncserver has been patched by the most CVEs?: rfbTightExtensionClientClose in libvncserver/tightvnc-filetransfer/rfbtightserver.c has been changed by 1 CVE fixes, from 2018 to 2018.
How large is a typical CVE fix in debian/libvncserver?: The median fix changes 9 lines. 88% of fixes change 20 lines or fewer, and 81% change a single function.
How is a fix located to a function?: The upstream fix commit for each CVE is fetched and its diff is split into hunks. Each hunk is attributed to the function, method or type it changes, using the definition the diff itself names. Backports of the same fix to stable branches are counted once.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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