CVE-2026-22102
Arbitrary file overwrite through certificate update functionality
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 13, 2026
- Updated
- Jul 16, 2026
- Reserved
- Jan 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | DIVD |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
DC-80EVbee |
|
References
- https://csirt.divd.nl/DIVD-2026-00001/third-party-advisory
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