Vim: Arbitrary Ex Command Execution in C Omni-Completion
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 8 fixed, 4 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-829.
Summary
Vim is an open source, command line text editor. Prior to 9.2.0845, StructMembers() in runtime/autoload/ccomplete.vim constructs and executes a vimgrep command using an insufficiently escaped typeref: or typename: value from a tags file, allowing an unterminated collection followed by a command separator to execute arbitrary Ex and operating-system commands when a user invokes C omni-completion with CTRL-X CTRL-O on a member access whose type is resolved from that tags file. This issue is fixed in version 9.2.0845.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA vim (vim) Fixed in 9.2.0845
Red Hat 5 advisories
- RHSA-2026:82939 Released 2026-10-14 · Red Hat rating ImportantRed Hat Update Infrastructure 5.3 security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-kubernetes-rhel9, registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9 +2
- RHSA-2026:77359 Released 2026-10-07 · Red Hat rating Importantvim security update
- Red Hat Enterprise Linux AppStream (v. 8) vim-common-2:8.0.1763-32.el8_10
- Red Hat Enterprise Linux BaseOS (v. 8) vim-2:8.0.1763-32.el8_10
- RHSA-2026:75768 Released 2026-10-06 · Red Hat rating Importantvim security update
- Red Hat Enterprise Linux AppStream (v. 9) vim-common-2:8.2.2637-26.el9_8.23
- Red Hat Enterprise Linux BaseOS (v. 9) vim-2:8.2.2637-26.el9_8.23
Show 2 more Red Hat advisories
- RHSA-2026:75769 Released 2026-10-05 · Red Hat rating Importantvim security update
- Red Hat Enterprise Linux AppStream (v. 10) vim-common-2:9.1.083-9.el10_2.22
- Red Hat Enterprise Linux BaseOS (v. 10) vim-2:9.1.083-9.el10_2.22
- RHSA-2026:57614 Released 2026-08-20 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images vim-2:9.2.967-1.1.hum1@src, vim-X11-2:9.2.967-1.1.hum1@aarch64, vim-X11-2:9.2.967-1.1.hum1@x86_64 +14
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:75769 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:77359 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:75768 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:75769 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:77359 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:75768 |
| Red Hat Hardened Images | Fixed | RHSA-2026:57614 |
| Red Hat Update Infrastructure 5 | Fixed | RHSA-2026:82939 |
Not affected: 6 products
- Red Hat Enterprise Linux AppStream (v. 10)
- Red Hat Enterprise Linux AppStream (v. 8)
- Red Hat Enterprise Linux AppStream (v. 9)
- Red Hat Enterprise Linux BaseOS (v. 10)
- Red Hat Enterprise Linux BaseOS (v. 8)
- Red Hat Enterprise Linux BaseOS (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73073
- 2026-10-06 Fix available: RHSA-2026:75769 · Red Hat
- 2026-10-06 Fix available: RHSA-2026:75768 · Red Hat
- 2026-10-06 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 10) +1 · Red Hat
- 2026-10-07 Fix available: RHSA-2026:77359 · Red Hat
- 2026-10-07 Fix available: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8) · Red Hat
- 2026-10-16 CVSS score added · NVD
- 2026-10-16 Fix available: RHSA-2026:82939 · Red Hat
- 2026-10-16 Fix available: Red Hat Update Infrastructure 5 · Red Hat
- 2026-11-02 Affected versions changed · Red Hat
References
More Vim vulnerabilities
- TI-2022-03248 Heap-based Buffer Overflow in vim/vim CVSS 3.1CRITICAL 9.8
- TI-2024-15103 Vim before 9.0.2142 has a stack-based buffer overflow because did_set_langmap in map.c… CVSS 3.1HIGH 7.8
- TI-2023-05093 Use After Free in vim/vim CVSS 3.1HIGH 7.8
- TI-2023-04407 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
- TI-2023-04379 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
- TI-2023-04378 Use After Free in vim/vim CVSS 3.1HIGH 7.8
Sources
- CVE-2026-73073 · CVE Program
- CVE-2026-73073 · NVD
- FIRST EPSS
- CVE-2026-73073 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences