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Fencer Intel
medium 5.0

CVE-2026-39881 json

Vim Ex command injection in Vims NetBeans integration

published 7mo ago modified 3mo ago also EUVD-2026-20622

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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.

Patch / fix

  • vim vim 9.2.0316
  • vim Debian 13 2:9.1.1230-2+deb13u1
  • vim Debian 14 2:9.2.0338-1

debian advisories DEBIAN-CVE-2026-39881

  • vim Ubuntu 22.04 LTS 2:8.2.3995-1ubuntu2.28
  • vim Ubuntu 24.04 LTS 2:9.1.0016-1ubuntu7.12
  • vim Ubuntu 25.10 2:9.1.0967-1ubuntu6.3
  • vim Ubuntu 26.04 LTS 2:9.1.2141-1ubuntu4.1
  • vim Ubuntu Pro 14.04 LTS 2:7.4.052-1ubuntu3.1+esm25
  • vim Ubuntu Pro 16.04 LTS 2:7.4.1689-3ubuntu1.5+esm31
  • vim Ubuntu Pro 18.04 LTS 2:8.0.1453-1ubuntu1.13+esm16
  • vim Ubuntu Pro 20.04 LTS 2:8.1.2269-1ubuntu5.32+esm4

ubuntu advisories UBUNTU-CVE-2026-39881

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • vim hummingbird 1 9.2.967-1.1.hum1
  • xxd hummingbird 1 9.2.967-1.1.hum1
  • vim-X11 hummingbird 1 9.2.967-1.1.hum1
  • vim-data hummingbird 1 9.2.967-1.1.hum1
  • vim-common hummingbird 1 9.2.967-1.1.hum1
  • vim-minimal hummingbird 1 9.2.967-1.1.hum1
  • vim-enhanced hummingbird 1 9.2.967-1.1.hum1
  • vim-filesystem hummingbird 1 9.2.967-1.1.hum1

red hat advisories RHSA-2026:57614

  • vim SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +3 more 9.2.0530-150000.5.94.1
  • vim Linux Micro Extras 6.2 9.2.0530-160000.1.1

suse advisories SUSE-SU-2026:2313-1SUSE-SU-2026:21833-1

  • vim openSUSE Tumbleweed 9.2.0398-1.1

opensuse advisories openSUSE-SU-2026:10652-1

  • vim Alpine 3.24, Alpine 3.23 9.2.0321-r0

alpine advisories ALPINE-CVE-2026-39881

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • vim Azure Linux 3.0 9.2.0323-1

azure linux advisories AZL-82010

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Is CVE-2026-39881 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-39881 updated cvss 5.0

vim: Vim: Arbitrary code execution via command injection in NetBeans interface

  • Red Hat Enterprise Linux 6 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 7 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 8 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 9 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 10 vim Red Hat OpenShift Container Platform 4 rhcos
    affected: workaround, no fix available “Users should refrain to connect to untrusted netbeans server.”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9
    under investigation
  • Red Hat Hardened Images vim 9.2.967-1.1.hum1, xxd 9.2.967-1.1.hum1, vim-X11 9.2.967-1.1.hum1, vim-data 9.2.967-1.1.hum1, vim-common 9.2.967-1.1.hum1, vim-minimal 9.2.967-1.1.hum1, +3 more
    fixed: vendor fix “Users should refrain to connect to untrusted netbeans server.” RHSA-2026:57614

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7mo ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:N
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • vim vim

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.