Description
7-Zip 22.01 does not report an error for certain invalid xz files, involving block flags and reserved bits. Some later versions are unaffected.
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 | No fix yet | — |
| Debian 13 | 7zip | No fix yet | — |
| Debian 13 | p7zip | 16.02+transitional.1 | — |
| Debian 12 | 7zip +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | 7zip | No fix yet | — |
| Ubuntu 26.04 LTS | 7zip | No fix yet | — |
| Ubuntu 25.10 | 7zip | No fix yet | — |
| Ubuntu 22.04 LTS | p7zip | No fix yet | — |
| Ubuntu 20.04 LTS | p7zip | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | p7zip | No fix yet | — |
| Ubuntu 16.04 LTS | p7zip | No fix yet | — |
| Ubuntu 14.04 LTS | p7zip | No fix yet | — |
| Ubuntu Pro 24.04 LTS | 7zip | No fix yet | — |
| Ubuntu Pro 22.04 LTS | 7zip | No fix yet | — |
Advisories 1
- 7PAA023732 System 800xA affected by 3rd party component vulnerabilities ABB PSIRT · May 22, 2026