How severe is CVE-2026-39881?

CVE-2026-39881 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-39881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39881?

CVE-2026-39881 affects Vim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39881?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39881 have an EU (EUVD) identifier?

Yes. CVE-2026-39881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20622.

When was CVE-2026-39881 published?

CVE-2026-39881 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-39881

CVE-2026-39881 is a medium-severity vulnerability in Vim with a CVSS 3.x base score of 5.0. 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-94.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20622
Weakness: CWE-94
Affected product: Vim
Published: 2026-04-08
Last modified: 2026-06-17

Description

Vim is an open source, command line text editor. Prior to 9.2.0316, a command injection vulnerability in Vim's netbeans interface allows a malicious netbeans server to execute arbitrary Ex commands when Vim connects to it, via unsanitized strings in the defineAnnoType and specialKeys protocol messages. This vulnerability is fixed in 9.2.0316.

Frequently asked questions

What is CVE-2026-39881?: Vim is an open source, command line text editor. Prior to 9.2.0316, a command injection vulnerability in Vim's netbeans interface allows a malicious netbeans server to execute arbitrary Ex commands when Vim connects to it, via unsanitized strings in the defineAnnoType and specialKeys protocol messages. This vulnerability is fixed in 9.2.0316.
How severe is CVE-2026-39881?: CVE-2026-39881 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-39881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39881?: CVE-2026-39881 affects Vim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39881 have an EU (EUVD) identifier?: Yes. CVE-2026-39881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20622.
When was CVE-2026-39881 published?: CVE-2026-39881 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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