CVE-2022-0530

MEDIUM

Unzip - Heap-Based Buffer Overflow via Wide String Conversion

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-0530. PoCs published by bytehackr.

AI-analyzed exploit summary This repository contains functional exploit scripts for CVE-2022-0530, demonstrating a segmentation fault vulnerability in unzip 6.0. The scripts use Docker to reproduce the issue with a malformed input file, leveraging valgrind for debugging.

Description

A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Exploits (1)

gitlab WORKING POC
by bytehackr · poc
https://gitlab.com/bytehackr/unzip_poc

This repository contains functional exploit scripts for CVE-2022-0530, demonstrating a segmentation fault vulnerability in unzip 6.0. The scripts use Docker to reproduce the issue with a malformed input file, leveraging valgrind for debugging.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: unzip 6.0
No auth needed
Prerequisites: Docker · valgrind · unzip 6.0 · malformed input file
devstral-2 · analyzed Feb 23, 2026 Full analysis →

References (11)

Core 11
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2051395
Exploit, Third Party Advisory x_refsource_misc
https://github.com/ByteHackr/unzip_poc
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT213257
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT213256
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT213255
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2022/May/33
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2022/May/35
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2022/May/38
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2022/dsa-5202
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/09/msg00028.html

Scores

CVSS v3 5.5
EPSS 0.0211
EPSS Percentile 79.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

Status published
Products (8)
apple/mac_os_x 10.15.7 (15 CPE variants)
apple/mac_os_x 10.15 - 10.15.7
apple/macos 11.0 - 11.6.6
debian/debian_linux 10.0
debian/debian_linux 11.0
fedoraproject/fedora 35
redhat/enterprise_linux 8.0
unzip_project/unzip 6.0
Published Feb 09, 2022
Tracked Since Feb 18, 2026