Description
The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | rxvt-unicode | rxvt-unicode 9.30 | — |
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 | rxvt-unicode | 9.31-1 | — |
| Debian 13 | rxvt-unicode | 9.31-1 | — |
| Debian 12 | rxvt-unicode | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rxvt-unicode | No fix yet | — |
| Ubuntu 26.04 LTS | rxvt-unicode | No fix yet | — |
| Ubuntu 25.10 | rxvt-unicode | No fix yet | — |
| Ubuntu 24.04 LTS | rxvt-unicode | No fix yet | — |
| Ubuntu 22.04 LTS | rxvt-unicode | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | rxvt-unicode | No fix yet | — |
| Ubuntu Pro 18.04 LTS | rxvt-unicode | No fix yet | — |
| Ubuntu Pro 16.04 LTS | rxvt-unicode | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP5 | rxvt-unicode | 9.31-bp155.3.3.1 | openSUSE-SU-2023:0306-1 |
| SUSE Package Hub 15 SP4 | rxvt-unicode | 9.31-bp155.3.3.1 | openSUSE-SU-2023:0306-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rxvt-unicode | 9.31-1.1 | openSUSE-SU-2024:13323-1 |
| openSUSE Leap 15.5 | rxvt-unicode | 9.31-bp155.3.3.1 | openSUSE-SU-2023:0306-1 |
| openSUSE Leap 15.4 | rxvt-unicode | 9.31-bp155.3.3.1 | openSUSE-SU-2023:0306-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | rxvt-unicode | 9.31-r0 | — |
| Alpine v3.23 | rxvt-unicode | 9.31-r0 | — |
| Alpine v3.22 | rxvt-unicode | 9.31-r0 | — |
| Alpine v3.21 | rxvt-unicode | 9.31-r0 | — |
| Alpine v3.20 | rxvt-unicode | 9.31-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | rxvt-unicode | 9.31-r0 | — |
| Alpine v3.18 | rxvt-unicode | 9.31-r0 | — |
Advisories 2
- openSUSE-SU-2023:0306-1 Security update for rxvt-unicode SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13323-1 rxvt-unicode-9.31-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025