Description
nncp before 8.12.0 allows path traversal (for reading or writing) during freqing and file saving via a crafted path in packet data.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NNCP | NNCP | < 8.12.0 | 8.12.0 |
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 | nncp | 8.12.1-1 | — |
| Debian 13 | nncp | 8.11.0-4+deb13u1 | DSA-6012-1 |
| Debian 12 | nncp | 8.8.2-3+deb12u1 | DSA-6012-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | nncp | 8.11.0-4+deb13u1build0.25.10.1 | USN-8359-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | nncp | 8.10.0-8ubuntu0.3+esm3 | USN-8359-1 |
| Ubuntu Pro 22.04 LTS | nncp | 8.5.0-1ubuntu0.1+esm3 | USN-8359-1 |
Advisories 2
- USN-8359-1 nncp vulnerability Ubuntu Security Notices (USN) · Jun 1, 2026
- DSA-6012-1 nncp - security update Debian Security (DSA / DLA) · Sep 26, 2025