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NVD / CVE Program· CNA GitHub_M

CVE-2023-48234: overflow in nv_z_get_count in vim

MediumCVSS 4.3 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 17/100)

  • 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: 0.75% (FIRST EPSS); higher than 55.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: vim (Debian:13) 2:9.0.2116-1; vim (openSUSE:Leap 15.5) 9.1.0111-150500.20.9.1; vim (openSUSE:Leap Micro 5.3) 9.1.0111-150000.5.60.1.

Low priority for now. Upgrade to vim (Debian:13) 2:9.0.2116-1; vim (openSUSE:Leap 15.5) 9.1.0111-150500.20.9.1; vim (openSUSE:Leap Micro 5.3) 9.1.0111-150000.5.60.1 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. When getting the count for a normal mode z command, it may overflow for large counts given. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit `58f9befca1` which has been included in release version 9.0.2109. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Published
Nov 16, 2023
Updated
Jun 23, 2026
EPSS
0.7% · 55th percentile

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.3
CNA · GitHub_M
2.8
1.5 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

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-2023-48234

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
fedoraprojectfedora

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

    • < 9.0.2109affected
Affected versions · NVD (4)

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

  • fedoraproject fedora37
  • fedoraproject fedora38
  • fedoraproject fedora39
  • vim vimbefore 9.0.2109

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12vimfrom 0—
Debian:13vimbefore 2:9.0.2116-12:9.0.2116-1
openSUSE:Leap 15.5vimbefore 9.1.0111-150500.20.9.19.1.0111-150500.20.9.1
openSUSE:Leap Micro 5.3vimbefore 9.1.0111-150000.5.60.19.1.0111-150000.5.60.1
SUSE:Linux Enterprise Micro 5.3vimbefore 9.1.0111-150000.5.60.19.1.0111-150000.5.60.1
SUSE:Linux Enterprise Micro 5.5vimbefore 9.1.0111-150500.20.9.19.1.0111-150500.20.9.1
SUSE:Linux Enterprise Server 12 SP5vimbefore 9.1.0111-17.29.19.1.0111-17.29.1

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-2023-48232Nov 16, 2023 · Floating point Exception in adjust_plines_for_skipcol() in vim
    17Monitor
  • ← EarlierCVE-2023-48233Nov 16, 2023 · overflow with count for :s command in vim
    17Monitor
  • Later →CVE-2023-48235Nov 16, 2023 · overflow in ex address parsing in vim
    17Monitor

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
debian:vim2:9.0.2116-1 · Debian:13Package registry (OSV)
opensuse:vim9.1.0111-150000.5.60.1 · openSUSE:Leap Micro 5.3Package registry (OSV)
suse:vim9.1.0111-150000.5.60.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:vim9.1.0111-17.29.1 · SUSE:Linux Enterprise Server 12 SP5Package 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.

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-2023-473475 days apartInteger Overflow or Wraparound in vim/vim
    31Monitor
  • CVE-2023-2610191 days apartInteger Overflow or Wraparound in vim/vim
    31Monitor
  • CVE-2022-2285502 days apartInteger Overflow or Wraparound in vim/vim
    31Monitor
  • CVE-2023-4624620 days apartInteger Overflow in :history command in Vim
    22Monitor
  • CVE-2023-482330 days apartoverflow with count for :s command in vim
    17Monitor
  • CVE-2023-482370 days apartoverflow in shift_line in vim
    17Monitor

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

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

nvd-primary

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

—

References

Show all references (6 more)

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

All records