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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | unzip | 6.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | unzip | 6.0-27 | — |
| Debian 13 | unzip | 6.0-27 | — |
| Debian 12 | unzip | 6.0-27 | — |
| Debian 11 | unzip | 6.0-26+deb11u1 | DSA-5202-1 |
| Debian 10 | unzip | 6.0-23+deb10u3 | DLA-3118-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | unzip | 6.0-26ubuntu3.1 | USN-5673-1 |
| Ubuntu 20.04 LTS | unzip | 6.0-25ubuntu1.1 | USN-5673-1 |
| Ubuntu 18.04 LTS | unzip | 6.0-21ubuntu1.2 | USN-5673-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | unzip | 6.0-20ubuntu1.1+esm1 | USN-5673-1 |
| Ubuntu Pro 14.04 LTS | unzip | 6.0-9ubuntu1.6+esm1 | USN-5673-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | unzip | 6.00-150000.4.11.1 | SUSE-SU-2022:3399-1 |
| SLES 15 SP3 | unzip | 6.00-150000.4.11.1 | SUSE-SU-2022:3399-1 |
| SLES 12 SP5 | unzip | 6.00-33.16.1 | SUSE-SU-2022:3386-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | unzip | 6.00-33.16.1 | SUSE-SU-2022:3386-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | unzip | 6.00-40.1 | openSUSE-SU-2024:12357-1 |
| openSUSE Leap 15.4 | unzip | 6.00-150000.4.11.1 | SUSE-SU-2022:3399-1 |
| openSUSE Leap 15.3 | unzip | 6.00-150000.4.11.1 | SUSE-SU-2022:3399-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | unzip | 6.0-r11 | — |
| Alpine v3.23 | unzip | 6.0-r11 | — |
| Alpine v3.22 | unzip | 6.0-r11 | — |
| Alpine v3.21 | unzip | 6.0-r11 | — |
| Alpine v3.20 | unzip | 6.0-r11 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | unzip | 6.0-r11 | — |
| Alpine v3.18 | unzip | 6.0-r11 | — |
| Alpine v3.17 | unzip | 6.0-r11 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | unzip | 6.0-57.amzn2023.0.2 | ALAS2023-2023-029 |
| Amazon Linux 2 | unzip | 6.0-57.amzn2.0.1 | ALAS2-2023-1906 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | unzip | 6.0-21 | — |
| Azure Linux 2 (CBL-Mariner) | unzip | 6.0-21 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
ByteHackr/unzip_poc ★ 3 · Feb 28, 2022
CVE-2022-0529 & CVE-2022-0530
-
nanaao/unzip_poc ★ 2 · Feb 28, 2022
CVE-2022-0529 & CVE-2022-0530
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 10
- USN-5673-1 unzip vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-5202-1 unzip - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3118-1 unzip - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:3386-1 Security update for unzip SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12357-1 unzip-6.00-40.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3399-1 Security update for unzip SUSE / openSUSE Security Updates · Feb 4, 2026
- VDE-2025-053 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · Jul 8, 2025
- WID-SEC-2022-0943 UnZip: Mehrere Schwachstellen ermöglichen Codeausführung BSI CERT-Bund (WID) · Oct 3, 2024
- ALAS2023-2023-029 Low: unzip security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ALAS2-2023-1906 Low: unzip security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 20, 2023