CVE-2022-2580

Crash or code execution via malformed string constants

Published Aug 1, 2022 · Updated Aug 3, 2024

Heap-based buffer overflow in Vim before 9.0.0102 allows local users to crash the editor or execute code via a crafted Vim script. The eval_string function fails to skip an entire form, treats a brace inside it as interpolation syntax, and advances beyond the allocated string buffer. Exploitation requires victim interaction with crafted content, and resulting code runs with the account privileges of the Vim process.

CVSS severity7.3
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Vim before 9.0.0102 allows local users to crash the editor or execute code via a crafted Vim script. The eval_string function fails to skip an entire form, treats a brace inside it as interpolation syntax, and advances beyond the allocated string buffer. Exploitation requires victim interaction with crafted content, and resulting code runs with the account privileges of the Vim process.

The record

CVE
CVE-2022-2580
Published
Aug 1, 2022
Updated
Aug 3, 2024
Vendor
Vim
Product
Vim
Classifications
CWE-122, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <9.0.0102

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=unspecified <9.0.0102

Published CVSS scores

7.8CanonicalCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.3@huntrdevCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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