CVE-2017-7894: WinDjView 2.1 might allow user-assisted attackers to execute code via a crafted .djvu file, because of a "User

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HIGH 7.8DOWNGRADE

CVE-2017-7894 is a high-severity flaw (CVSS 7.8) affecting windjview. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WinDjView 2.1 might allow user-assisted attackers to execute code via a crafted .djvu file, because of a "User Mode Write AV near NULL" in WinDjView.exe. One threat model is a victim who obtains an untrusted .djvu file from a remote location and issues several user-defined commands.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.1% (top 33%)
CISA exploited list	No
Published	2017-07-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: windjview project

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

Am I affected?

Timeline

2017-07-05 20:29 UTCPublished CVE record published
2026-06-17 01:25 UTCUpdated Record last modified

windjview project windjview DOWNGRADE

Affected: 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1 (Debian / Ubuntu)

apt-cache madison windjview sudo apt install windjview=<VERSION_BEFORE_2.1> sudo apt-mark hold windjview

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list windjview sudo dnf downgrade windjview-<VERSION_BEFORE_2.1> sudo dnf versionlock add windjview

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-7894?

windjview: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-7894 being exploited?

CVE-2017-7894 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-2017-7894 affect?

CVE-2017-7894 affects windjview. Severity is high (CVSS 7.8). WinDjView 2.1 might allow user-assisted attackers to execute code via a crafted .djvu file, because of a "User Mode Write AV near NULL" in WinDjView.exe. One threat model is a victim who obtains an untrusted .djvu file from a remote locatio

How urgent is CVE-2017-7894?

Priority 44/100. High severity

References

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