Vulnerability · Published Apr 9, 2026 · Assigned by icscert
CVE-2026-35556Plaintext storage of a password in OpenPLC_V3
Critical 9.2
In plain English
A critical-severity security flaw in OpenPLC_V3 from OpenPLC_V3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 4.0)9.2Critical
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenPLC_V3 | OpenPLC_V3 | All versions |
Weakness: CWE-256 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10 government-resource