How many CVEs have patched GetCharZ?

1 published CVEs changed GetCharZ in sumatrapdfreader/sumatrapdf, in 1 distinct patches totalling 20 changed lines, between 2026 and 2026.

What is the latest CVE that changed GetCharZ?

CVE-2026-107738 (SumatraPDF: Untrusted binary record offset used without lower-bound validation), published 2026-10-08, changed lines 101 to 116 of src/ChmFile.cpp.

How does GetCharZ compare to the rest of sumatrapdfreader/sumatrapdf?

sumatrapdfreader/sumatrapdf has 16 CVEs with a located fix in total; 1 of them changed GetCharZ.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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GetCharZ

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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
Sumatrapdfreader
Sumatrapdf
GetCharZ

GetCharZ in sumatrapdfreader/sumatrapdf: Patched by 1 CVEs

sumatrapdfreader/sumatrapdf

Function

GetCharZ

Name: GetCharZ in sumatrapdfreader/sumatrapdf: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

src/ChmFile.cpp

Last patched October 8, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

GetCharZ in sumatrapdfreader/sumatrapdf was changed by 1 published CVE fixes in 2026, in 1 distinct patches that added or removed 20 lines in total.

sumatrapdfreader/sumatrapdf has 16 CVEs with a located fix in total, so 6% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed GetCharZ, newest first, with the lines each fix touched.

SumatraPDF: Untrusted binary record offset used without lower-bound validation
CVE-2026-107738 · lines 101–116 · +12 −8
Medium · CVSS 6.8
EPSS 0.1%2026-10-08

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Other hotspots in the repository

Functions in sumatrapdfreader/sumatrapdf changed by the most CVE fixes.

LitParseHeader2 CVEs · src/LitDoc.cpp ParseHeader2 CVEs · src/MobiDoc.cpp SendAIChatMessage1 CVEs · src/AIChatPanel.cpp BuildCmdLineTemp1 CVEs · src/CodexBuild.cpp QuoteCmdLineArgTemp1 CVEs · src/base/CmdLineArgsIter.cpp BuildClaudeTranslateCmdLineTemp1 CVEs · src/SelectionTranslate.cpp

All patched functions in sumatrapdfreader/sumatrapdf

Frequently asked questions

Common questions about CVE fixes to GetCharZ.

How many CVEs have patched GetCharZ?: 1 published CVEs changed GetCharZ in sumatrapdfreader/sumatrapdf, in 1 distinct patches totalling 20 changed lines, between 2026 and 2026.
What is the latest CVE that changed GetCharZ?: CVE-2026-107738 (SumatraPDF: Untrusted binary record offset used without lower-bound validation), published 2026-10-08, changed lines 101 to 116 of src/ChmFile.cpp.
How does GetCharZ compare to the rest of sumatrapdfreader/sumatrapdf?: sumatrapdfreader/sumatrapdf has 16 CVEs with a located fix in total; 1 of them changed GetCharZ.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

src/ChmFile.cpp on GitHub (opens in a new tab)
All patched functions in sumatrapdfreader/sumatrapdf
Patched functions directory

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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Overview
CVEs that patched it
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