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NVD / CVE Program· CNA GitHub_M

CVE-2026-73070: Vim: Stack Buffer Overflow in the Vim Socket Server

MediumCVSS 6.8 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: vim vim 9.2.0842; azl3 vim 9.2.0782-1 on Azure Linux 3.0 9.2.0957-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to vim vim 9.2.0842; azl3 vim 9.2.0782-1 on Azure Linux 3.0 9.2.0957-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Vim is an open source, command line text editor. Prior to 9.2.0842, the socket server backend in src/socketserver.c accepts unbounded client connections in socketserver_accept(), causing descriptors to overflow fd_set structures in src/channel.c and fixed-size struct pollfd arrays in src/os_unix.c, which allows a local process that can connect to the server socket to corrupt stack memory or terminate the Vim server. This issue is fixed in version 9.2.0842.

Published
Aug 11, 2026
Updated
Oct 29, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
6.8
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-73070

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
vimvim

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • vim vim

    • < 9.2.0842affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • vim vim9.2.0512 and later · before 9.2.0842

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.23vimfrom 9.2.0512 · before 9.2.0854-r09.2.0854-r0
Alpine:v3.24vimfrom 9.2.0512 · before 9.2.0843-r09.2.0843-r0
Debian:12vimfrom 0—
Debian:14vimbefore 2:9.2.0858-12:9.2.0858-1
openSUSE:Leap 16.0vimbefore 9.2.0957-160000.1.19.2.0957-160000.1.1
Red Hat:hummingbird:1vimbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-commonbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-databefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-default-editorbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-enhancedbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-filesystembefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-minimalbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1vim-X11before 0:9.2.967-1.hum10:9.2.967-1.hum1
Red Hat:hummingbird:1xxdbefore 0:9.2.967-1.hum10:9.2.967-1.hum1
SUSE:Linux Enterprise Micro 5.3vimbefore 9.2.0957-150000.5.102.19.2.0957-150000.5.102.1
SUSE:Linux Enterprise Micro 5.5vimbefore 9.2.0957-150500.20.64.19.2.0957-150500.20.64.1
SUSE:Linux Enterprise Server 12 SP5-LTSSvimbefore 9.2.0957-17.76.19.2.0957-17.76.1
SUSE:Linux Micro 6.0vimbefore 9.2.0957-1.19.2.0957-1.1
SUSE:Linux Micro 6.1vimbefore 9.2.0957-slfo.1.1_1.19.2.0957-slfo.1.1_1.1
SUSE:Linux Micro Extras 6.2vimbefore 9.2.0957-160000.1.19.2.0957-160000.1.1

Same product

vim: all records

Other highest-scoring records for the same primary product.

  • CVE-2008-2712Vim 7.1.314, 6.4, and other versions allows user-assisted remote attackers to execute arbitrary commands via Vim scripts that do not…
    42Plan
  • CVE-2022-0318Heap-based Buffer Overflow in vim/vim
    40Plan
  • CVE-2019-12735getchar.c in Vim before 8.1.1365 and Neovim before 0.3.6 allows remote attackers to execute arbitrary OS commands via the :source! command…
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-51400Aug 4, 2026 · An issue in Vim Project v9.2.0389 and earlier allows a local attacker to execute arbitrary code via the vms_fixfilename() function within…
    33Monitor
  • ← EarlierCVE-2026-51401Aug 4, 2026 · An issue in Vim Project v9.2.0389 and earlier allows a local attacker to execute arbitrary code via the vms_fixfilename() function within…
    30Monitor
  • Later →CVE-2026-73071Aug 11, 2026 · Vim: Use-after-free in JSON Decoding
    13Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
vim vim9.2.0842 · descriptionVendor (CNA)
azl3 vim 9.2.0782-1 on Azure Linux 3.09.2.0957-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
alpine:vim9.2.0854-r0 · Alpine:v3.23Package registry (OSV)
debian:vim2:9.2.0858-1 · Debian:14Package registry (OSV)
opensuse:vim9.2.0957-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
red hat:vim0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-common0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-data0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-default-editor0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-enhanced0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-filesystem0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-minimal0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:vim-X110:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:xxd0:9.2.967-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
suse:vim9.2.0957-slfo.1.1_1.1 · SUSE:Linux Micro 6.1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-26269179 days apartVim has a Netbeans specialKeys Stack Buffer Overflow
    30Monitor
  • CVE-2026-28422165 days apartVim has stack-buffer-overflow in build_stl_str_hl()
    8Monitor

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: researcher credit · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records