CVE-2026-4827 Insufficient Entropy vulnerability on Multiple Products
Attackers can exploit insufficient entropy in session management to gain unauthorized access to Schneider Electric industrial control products.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-4827?
CVE-2026-4827 is a high-severity vulnerability in Schneider Electric Easergy C5, published on 12 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
CWE‑331: Insufficient Entropy vulnerability exists that could lead to unauthorized access when an attacker on the network can exploit weaknesses in session‑management protections.
Weakness: CWE-331
Which versions are affected by CVE-2026-4827?
How do I fix CVE-2026-4827?
No fix has been published for CVE-2026-4827 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4827 being exploited?
There is no known exploitation of CVE-2026-4827 in the wild and no public exploit code.
Sources
Also known as GHSA-r6x4-qp59-vf35.