Description
In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding
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 | tcl8.6 | No fix yet | — |
| Debian 13 | tcl8.6 | No fix yet | — |
| Debian 12 | tcl8.6 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | tcl | 8.6.12-150300.14.3.1 | SUSE-FU-2022:0868-1 |
| SLES 15 SP3 | tk | 8.6.12-150300.10.3.1 | SUSE-FU-2022:0868-1 |
| SLES 12 SP5 | tk +1 | 8.6.12-11.3.1 | SUSE-FU-2022:0484-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | tk +1 | 8.6.12-11.3.1 | SUSE-FU-2022:0484-1 |
Advisories 2
- SUSE-FU-2022:0484-1 Feature update for tcl and tk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-FU-2022:0868-1 Feature update for tcl and tk SUSE / openSUSE Security Updates · Feb 4, 2026