CVE-2025-4748

Arbitrary file writes via absolute archive paths

Published Jun 16, 2025 · Updated Jul 24, 2026

Path traversal in vulnerable Erlang/OTP 17.0 and later releases allows local users to write archive contents outside the extraction directory. Functions zip:unzip/1, zip:unzip/2, zip:extract/1, and zip:extract/2 preserve an archive entry's absolute path instead of stripping its leading slash, drive, or device letter. Exploitation requires an application or user to extract a crafted archive to disk without the memory option, and the resulting write occurs with that process's filesystem permissions.

CVSS severity4.8
Medium
EPSS probability0.27%
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 vulnerable Erlang/OTP 17.0 and later releases allows local users to write archive contents outside the extraction directory. Functions zip:unzip/1, zip:unzip/2, zip:extract/1, and zip:extract/2 preserve an archive entry's absolute path instead of stripping its leading slash, drive, or device letter. Exploitation requires an application or user to extract a crafted archive to disk without the memory option, and the resulting write occurs with that process's filesystem permissions.

The record

CVE
CVE-2025-4748
Published
Jun 16, 2025
Updated
Jul 24, 2026
Vendor
Erlang
Product
Erlang/OTP
Classifications
CWE-22, CAPEC-165, CAPEC-597, T1565.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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=07b8f441ca711f9812fad9e9115bab3c3aa92f79 <* changes=[{"at":"d9454dbccbaaad4b8796095c8e653b71b066dfaf","status":"unaffected"},{"at":"9b7b5431260e05a16eec3ecd530a232d0995d932","status":"unaffected"},{"at":"0ac548b57c0491196c27e39518b5f6acf9326c1e","status":"unaffected"}]
  2. Affected versionversion=17.0 <* changes=[{"at":"28.0.1","status":"unaffected"},{"at":"27.3.4.1","status":"unaffected"},{"at":"26.2.5.13","status":"unaffected"}]
  3. Affected versionversion=2.0 <* changes=[{"at":"7.0.1","status":"unaffected"},{"at":"6.2.2.1","status":"unaffected"},{"at":"5.2.3.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Erlang · Erlang/OTPversion=07b8f441ca711f9812fad9e9115bab3c3aa92f79 <* changes=[{"at":"d9454dbccbaaad4b8796095c8e653b71b066dfaf","status":"unaffected"},{"at":"9b7b5431260e05a16eec3ecd530a232d0995d932","status":"unaffected"},{"at":"0ac548b57c0491196c27e39518b5f6acf9326c1e","status":"unaffected"}]; version=17.0 <* changes=[{"at":"28.0.1","status":"unaffected"},{"at":"27.3.4.1","status":"unaffected"},{"at":"26.2.5.13","status":"unaffected"}]; version=2.0 <* changes=[{"at":"7.0.1","status":"unaffected"},{"at":"6.2.2.1","status":"unaffected"},{"at":"5.2.3.4","status":"unaffected"}]

Published CVSS scores

4.8Erlang/OTPCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-165File Manipulation
CAPEC-597Absolute Path Traversal
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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