CVE-2023-48107Network attack vector

Remote code execution via mz_path_has_slash overflow

Published Nov 22, 2023 · Updated Nov 4, 2025

Out-of-bounds write in zlib-ng minizip-ng 4.0.2 allows remote attackers to execute arbitrary code via a crafted archive file. The mz_path_has_slash function in mz_os.c mishandles crafted path data, causing a heap buffer overflow during archive processing. Remote exploitation requires a victim process to open the crafted file, after which memory corruption can run attacker-controlled code.

CVSS severity8.8
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in zlib-ng minizip-ng 4.0.2 allows remote attackers to execute arbitrary code via a crafted archive file. The mz_path_has_slash function in mz_os.c mishandles crafted path data, causing a heap buffer overflow during archive processing. Remote exploitation requires a victim process to open the crafted file, after which memory corruption can run attacker-controlled code.

The record

CVE
CVE-2023-48107
Published
Nov 22, 2023
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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