CVE-2026-35177Public exploit

Arbitrary file overwrite via prefixed path traversal

Published Apr 6, 2026 · Updated Apr 6, 2026

Path traversal in Vim before 9.2.0280 allows attackers to overwrite arbitrary files by inducing a user to edit a crafted ZIP member. The zip.vim plugin's zip#Extract check rejects only member paths beginning with ../, so a dummy leading directory conceals traversal that remains after path normalization. Overwrite occurs only after the user opens the archive, selects and edits the malicious member, and runs :w; filesystem permissions bound the writable targets.

CVSS severity4.1
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Vim before 9.2.0280 allows attackers to overwrite arbitrary files by inducing a user to edit a crafted ZIP member. The zip.vim plugin's zip#Extract check rejects only member paths beginning with ../, so a dummy leading directory conceals traversal that remains after path normalization. Overwrite occurs only after the user opens the archive, selects and edits the malicious member, and runs :w; filesystem permissions bound the writable targets.

The record

CVE
CVE-2026-35177
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
Vim
Product
Vim
Classifications
CWE-22, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 2026Record 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=< 9.2.0280

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Vim · Vimversion=< 9.2.0280

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
4.1GitHub, Inc.CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:L

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.002User Execution: Malicious File

Public exploit references

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Technologies

Your stack

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Your stack

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