CVE-2023-3896: Divide By Zero in vim/vim from 9.0.1367-1 to 9.0.1367-3

This month

HIGH 7.8DOWNGRADE

CVE-2023-3896 is a high-severity flaw (CVSS 7.8) affecting vim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Divide By Zero in vim/vim from 9.0.1367-1 to 9.0.1367-3

Why this priority

High severity
Public exploit reference

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	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-369
Published	2023-08-07
Last modified	2026-06-17

Publisher (CNA): OpenCloudOS Community · Vendor: vim

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

Am I affected?

Timeline

2023-08-07 13:15 UTCPublished CVE record published
2026-06-17 06:15 UTCUpdated Record last modified

vim vim DOWNGRADE

Affected: 9.0.1367

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0.1367

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.0.1367 (Debian / Ubuntu)

apt-cache madison vim sudo apt install vim=<VERSION_BEFORE_9.0.1367> sudo apt-mark hold vim

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

dnf --showduplicates list vim sudo dnf downgrade vim-<VERSION_BEFORE_9.0.1367> sudo dnf versionlock add vim

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-2023-3896?

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

Is CVE-2023-3896 being exploited?

CVE-2023-3896 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-2023-3896 affect?

CVE-2023-3896 affects vim. Severity is high (CVSS 7.8). Divide By Zero in vim/vim from 9.0.1367-1 to 9.0.1367-3

How urgent is CVE-2023-3896?

Priority 41/100. High severity; Public exploit reference

Software pages

Vim vulnerabilities

Related CVEs

CVE-2026-73070 MEDIUM 5.5 UPGRADE Vim is an open source, command line text editor
CVE-2026-51400 HIGH 8.4 UPGRADE An issue in Vim Project v9.2.0389 and earlier allows a local attacker to execute arbitrary code via the vms_fi
CVE-2026-51401 HIGH 7.7 UPGRADE An issue in Vim Project v9.2.0389 and earlier allows a local attacker to execute arbitrary code via the vms_fi
CVE-2026-34982 HIGH 8.2 UPGRADE Vim is an open source, command line text editor
CVE-2025-66476 HIGH 7.8 UPGRADE Vim is an open source, command line text editor

References

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