How severe is CVE-2026-34982?

CVE-2026-34982 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-34982 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34982?

CVE-2026-34982 affects Vim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34982?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-34982 have an EU (EUVD) identifier?

Yes. CVE-2026-34982 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19313.

When was CVE-2026-34982 published?

CVE-2026-34982 was published on 2026-04-06 and last updated on 2026-07-07.

CVE-2026-34982

CVE-2026-34982 is a high-severity vulnerability in Vim with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19313
Weakness: CWE-78
Affected product: Vim
Published: 2026-04-06
Last modified: 2026-07-07

Description

Vim is an open source, command line text editor. Prior to version 9.2.0276, a modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file. The `complete`, `guitabtooltip` and `printheader` options are missing the `P_MLE` flag, allowing a modeline to be executed. Additionally, the `mapset()` function lacks a `check_secure()` call, allowing it to be abused from sandboxed expressions. Commit 9.2.0276 fixes the issue.

Frequently asked questions

What is CVE-2026-34982?: Vim is an open source, command line text editor. Prior to version 9.2.0276, a modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file. The `complete`, `guitabtooltip` and `printheader` options are missing the `P_MLE` flag, allowing a modeline to be executed. Additionally, the `mapset()` function lacks a `check_secure()` call, allowing it to be abused from sandboxed expressions. Commit 9.2.0276 fixes the issue.
How severe is CVE-2026-34982?: CVE-2026-34982 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-34982 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34982?: CVE-2026-34982 affects Vim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34982?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-34982 have an EU (EUVD) identifier?: Yes. CVE-2026-34982 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19313.
When was CVE-2026-34982 published?: CVE-2026-34982 was published on 2026-04-06 and last updated on 2026-07-07.

References

Affected products (1)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

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