CVE-2025-54819 Path traversal in SS1
Remote authenticated attackers can overwrite legitimate files via path traversal in SS1 server software.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54819?
CVE-2025-54819 is a high-severity path traversal vulnerability in DOS Co., Ltd. SS1, published on 28 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in SS1 Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier). If this vulnerability is exploited, legitimate files may be overwritten by a remote authenticated attacker.
Weakness: CWE-22
Which versions are affected by CVE-2025-54819?
How do I fix CVE-2025-54819?
No fix has been published for CVE-2025-54819 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-2025-54819 being exploited?
There is no known exploitation of CVE-2025-54819 in the wild and no public exploit code.
Sources
Also known as GHSA-f6pf-vhhj-w4pg.