Vulnerability · Published Oct 30, 2026 · Assigned by DIVD
CVE-2026-22105Use of default password based on serial number
High 8.7
In plain English
A high-severity security flaw in Delta UFC500 from Delta Electronics. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.2%top 91.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Delta UFC500 charging stations derive the default credentials of the Service account from character positions of the device serial number. An unauthenticated attacker with adjacent network access can reconstruct the resulting password, or exhaust the keyspace, and log in to read and change sensitive settings such as the OCPP backend.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Delta Electronics | Delta UFC500 | 0 – before 2.4.18 |
| Delta Electronics | Delta UFC500 | 0 – before 4.4.1 |
Weakness: CWE-1392 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
References
- https://csirt.divd.nl/DIVD-2026-00012 third-party-advisory
- https://csirt.divd.nl/CVE-2026-22105 third-party-advisory