CVE-2021-30046: VIGRA Computer Vision Library Version-1-11-1 contains a segmentation fault vulnerability in the impex.hxx read

This month

MEDIUM 6.5DOWNGRADE

CVE-2021-30046 is a medium-severity flaw (CVSS 6.5) affecting vigra computer vision library. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

VIGRA Computer Vision Library Version-1-11-1 contains a segmentation fault vulnerability in the impex.hxx read_image_band() function, in which a crafted file can cause a denial of service.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-755
Published	2021-04-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vigra computer vision library project

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

Am I affected?

Timeline

2021-04-06 13:15 UTCPublished CVE record published
2026-06-17 03:49 UTCUpdated Record last modified

vigra computer vision library project vigra computer vision library DOWNGRADE

Affected: 1.11.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.11.1

1. Check installed version

apt-cache policy vigra-computer-vision-library || rpm -q vigra-computer-vision-library || vigra-computer-vision-library --version

2. No fixed release: DOWNGRADE to a release before 1.11.1 (Debian / Ubuntu)

apt-cache madison vigra-computer-vision-library sudo apt install vigra-computer-vision-library=<VERSION_BEFORE_1.11.1> sudo apt-mark hold vigra-computer-vision-library

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

dnf --showduplicates list vigra-computer-vision-library sudo dnf downgrade vigra-computer-vision-library-<VERSION_BEFORE_1.11.1> sudo dnf versionlock add vigra-computer-vision-library

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-2021-30046?

vigra computer vision library: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-30046 being exploited?

CVE-2021-30046 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-2021-30046 affect?

CVE-2021-30046 affects vigra computer vision library. Severity is medium (CVSS 6.5). VIGRA Computer Vision Library Version-1-11-1 contains a segmentation fault vulnerability in the impex.hxx read_image_band() function, in which a crafted file can cause a denial of service.

How urgent is CVE-2021-30046?

Priority 44/100. Public exploit reference

References

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