CVE-2026-33156: ScreenToGif is a screen recording tool

Q: How do I fix CVE-2026-33156?

screentogif: upgrade to newer than 2.42.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-33156 being exploited?

CVE-2026-33156 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33156 affect?

CVE-2026-33156 affects screentogif. Severity is high (CVSS 7.8). ScreenToGif is a screen recording tool. In versions from 2.42.1 and prior, ScreenToGif is vulnerable to DLL sideloading via version.dll . When the portable executable is run from a user-writable directory, it loads version.dll from the appl

Q: How urgent is CVE-2026-33156?

Priority 36/100. High severity; Public exploit reference

Routine

HIGH 7.8UPGRADE

CVE-2026-33156 is a high-severity flaw (CVSS 7.8) affecting screentogif. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ScreenToGif is a screen recording tool. In versions from 2.42.1 and prior, ScreenToGif is vulnerable to DLL sideloading via version.dll . When the portable executable is run from a user-writable directory, it loads version.dll from the application directory instead of the Windows System32 directory, allowing arbitrary code execution in the user's context. This is especially impactful because ScreenToGif is primarily distributed as a portable appl

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-426, CWE-427
Published	2026-03-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: screentogif

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-20 21:17 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

screentogif screentogif UPGRADE

Affected: <= 2.42.1

Fixed in: newer than 2.42.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy screentogif || rpm -q screentogif || screentogif --version

2. UPGRADE to newer than 2.42.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade screentogif

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade screentogif

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33156?

screentogif: upgrade to newer than 2.42.1. Exact commands for each OS are on this page.

Is CVE-2026-33156 being exploited?

CVE-2026-33156 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33156 affect?

CVE-2026-33156 affects screentogif. Severity is high (CVSS 7.8). ScreenToGif is a screen recording tool. In versions from 2.42.1 and prior, ScreenToGif is vulnerable to DLL sideloading via version.dll . When the portable executable is run from a user-writable directory, it loads version.dll from the appl

How urgent is CVE-2026-33156?

Priority 36/100. High severity; Public exploit reference

Software pages

Windows vulnerabilities

References

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