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CVE-2026-73072· NVD / CVE Program· CNA GitHub_M

Vim: Heap Buffer Overflow when Loading a Spell File

Noroxi assessment

Priority: Monitor (action score 34/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.11% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. No special conditions are required; it is repeatable.
  • Fixed version: vim vim 9.2.0846; 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 9.2.0846; 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 9.2.0846, set_sofo() in src/spellfile.c reuses sl_sal_first[] without resetting values left by set_sal_first(), so a crafted spell file containing an SN_SAL section before an SN_SOFO section causes under-counted mapping lists and attacker-influenced writes beyond a heap allocation. This issue is fixed in version 9.2.0846.

HighCVSS 8.5 · v4.0—Proof of concept Fix available
Published
Aug 11, 2026
Updated
Oct 6, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
8.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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
  • Proof of concept exists, no weaponized module
  • A fix has been released

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

Follow CVE-2026-73072

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

Affected versions

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

  • vim vimbefore 9.2.0846

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

    • < 9.2.0846affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10vim-commonbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10vim-databefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10vim-enhancedbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10vim-filesystembefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10vim-minimalbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10vim-X11before 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:10xxdbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
AlmaLinux:8vim-commonbefore 2:8.0.1763-31.el8_10.72:8.0.1763-31.el8_10.7
AlmaLinux:8vim-enhancedbefore 2:8.0.1763-31.el8_10.72:8.0.1763-31.el8_10.7
AlmaLinux:8vim-filesystembefore 2:8.0.1763-31.el8_10.72:8.0.1763-31.el8_10.7
AlmaLinux:8vim-minimalbefore 2:8.0.1763-31.el8_10.72:8.0.1763-31.el8_10.7
AlmaLinux:8vim-X11before 2:8.0.1763-31.el8_10.72:8.0.1763-31.el8_10.7
AlmaLinux:9vim-commonbefore 2:8.2.2637-26.el9_8.212:8.2.2637-26.el9_8.21
AlmaLinux:9vim-enhancedbefore 2:8.2.2637-26.el9_8.212:8.2.2637-26.el9_8.21
AlmaLinux:9vim-filesystembefore 2:8.2.2637-26.el9_8.212:8.2.2637-26.el9_8.21
AlmaLinux:9vim-minimalbefore 2:8.2.2637-26.el9_8.212:8.2.2637-26.el9_8.21
AlmaLinux:9vim-X11before 2:8.2.2637-26.el9_8.212:8.2.2637-26.el9_8.21
Alpine:v3.23vimbefore 9.2.0854-r09.2.0854-r0
Debian:12vimall versions—
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:enterprise_linux:10.2vimbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
Red Hat:enterprise_linux:10.2vim-commonbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20
Red Hat:enterprise_linux:10.2vim-enhancedbefore 2:9.1.083-9.el10_2.202:9.1.083-9.el10_2.20

+59

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 properl
    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 i
    40Plan
  • CVE-2017-6350An integer overflow at an unserialize_uep memory allocation site would occur for vim before patch 8.0.0378, if it does not properly validate
    40Plan
  • CVE-2017-6349An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not properly validate valu
    40Plan
  • CVE-2017-5953vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may result in an integer overf
    40Plan

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 vim9.2.0846 · descriptionVendor (CNA)
azl3 vim 9.2.0782-1 on Azure Linux 3.09.2.0957-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:vim-common2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:vim-data2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:vim-enhanced2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:vim-filesystem2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:vim-minimal2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:vim-X112:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
almalinux:xxd2:9.1.083-9.el10_2.20 · AlmaLinux:10Package registry (OSV)
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:vim2:9.1.083-9.el10_2.20 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:vim-common2:9.1.083-9.el10_2.20 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:vim-common-debuginfo2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
red hat:vim-debuginfo2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
red hat:vim-debugsource2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
red hat:vim-enhanced2:9.1.083-9.el10_2.20 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:vim-enhanced-debuginfo2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
red hat:vim-filesystem2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::baseosPackage registry (OSV)
red hat:vim-minimal2:7.4.629-8.el7_9.2 · Red Hat:rhel_els:7Package registry (OSV)
red hat:vim-minimal-debuginfo2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
red hat:vim-X112:9.1.083-9.el10_2.20 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:vim-X11-debuginfo2:8.2.2637-22.el9_6.4 · Red Hat:rhel_eus:9.6::appstreamPackage registry (OSV)
rocky linux:vim2:9.1.083-9.el10_2.20 · Rocky Linux:10Package registry (OSV)
suse:vim9.2.0957-slfo.1.1_1.1 · SUSE:Linux Micro 6.1Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-08-19

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.

  1. Published
  2. First PoC+7 d
  3. TodayOct 17, 2026+66 d
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.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

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

  • CVE-2026-25749186 days apartHeap Overflow in Vim
    26Monitor
  • CVE-2026-4513095 days apartVim: Heap Buffer Overflow in spell file loading
    22Monitor
  • CVE-2026-28418165 days apartVim has Heap-based Buffer Overflow in Emacs tags parsing
    22Monitor
  • CVE-2026-28420165 days apartVim has Heap-based Buffer Overflow and OOB Read in :terminal
    17Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

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

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

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

All records