Description
7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of SQFS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18589.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 7-Zip | 7-Zip | 22.01 | — |
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 | 7zip | 23.01+dfsg-1 | — |
| Debian 13 | 7zip | 23.01+dfsg-1 | — |
| Debian 13 | p7zip | 16.02+transitional.1 | — |
| Debian 12 | 7zip | 22.01+really25.01+dfsg-0+deb12u1 | — |
| Debian 12 | p7zip | 16.02+really25.01+dfsg-0+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | 7zip | No fix yet | — |
Advisories 3
- 7PAA023732 System 800xA affected by 3rd party component vulnerabilities ABB PSIRT · May 22, 2026
- WID-SEC-2023-2183 7-Zip: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- ICSA-24-256-20 Rockwell Automation AADvance Trusted SIS Workstation CISA ICS & IT advisories · Sep 12, 2024
References
- ZDI-23-1164
- vendor-provided URL vendor-advisory