CVE-2025-70820 Path traversal in D6 Ultra
Attackers can access files outside the intended personal folder via absolute path traversal on Zettlab D6 Ultra devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-70820?
CVE-2025-70820 is a low-severity path traversal vulnerability in Zettlab D6 Ultra, published on 13 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Zettlab D6 Ultra before 1.7.0 allows absolute path traversal to reach folders other than the personal folder.
Weakness: CWE-36
Which versions are affected by CVE-2025-70820?
How do I fix CVE-2025-70820?
No fix has been published for CVE-2025-70820 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-70820 being exploited?
There is no known exploitation of CVE-2025-70820 in the wild and no public exploit code.
Sources
Also known as GHSA-vp95-63jx-qx25.