CVE-2026-22102 Arbitrary file overwrite through certificate update functionality
Attackers can overwrite arbitrary files via a web endpoint, leading to remote code execution or denial of service on EVbee DC-80 devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22102?
CVE-2026-22102 is a critical path traversal vulnerability in EVbee DC-80, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A POST request sent to a specific webserver endpoint can be used to write to arbitrary file locations. The endpoint accepts the filename parameter in the Content-Disposition header without verification. This can be used to cause a denial of service by overwriting system files, or remote-code-execution by overwriting shell-scripts which execution can be triggered through other means.
Weakness: CWE-20
Which versions are affected by CVE-2026-22102?
How do I fix CVE-2026-22102?
No fix has been published for CVE-2026-22102 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-2026-22102 being exploited?
There is no known exploitation of CVE-2026-22102 in the wild and no public exploit code.
Sources
Also known as GHSA-7jrx-8jxh-496c.