CVE-2026-73171 Path traversal in EKI-1242EIMS
Remote authenticated attackers can overwrite arbitrary files on Advantech EKI-1242EIMS devices via a crafted backup archive upload.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73171?
CVE-2026-73171 is a high-severity path traversal vulnerability in Advantech EKI-1242EIMS, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Nozomi Networks Labs identified a CWE-73: External Control of File Name or Path vulnerability in the backup-restore workflow of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote authenticated attacker to overwrite arbitrary files on the device filesystem by uploading a crafted backup archive through the web management interface.
Weakness: CWE-73
Which versions are affected by CVE-2026-73171?
How do I fix CVE-2026-73171?
No fix has been published for CVE-2026-73171 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-2026-73171 being exploited?
There is no known exploitation of CVE-2026-73171 in the wild and no public exploit code.
Sources
Also known as GHSA-gm35-6jgf-v5fw.