CVE-2026-4827
HIGHCVSS 8.7/10EPSS 0.31%
Last modified
CVE-2026-4827 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Schneider Electric | Easergy MiCOM C264 | Versions D6.x; Versions D7.33 and prior |
| Schneider Electric | Easergy C5 | Version 1.1.17 and prior |
| Schneider Electric | Easergy MiCOM P30 | P139 version prior to P139.678.700; P437 version prior to P437.678.700; P439 version prior to P439.678.700; P532 version prior to P532.678.700; P539 version prior to P539.678.700; P631 version prior to P631.678.700; P632 version prior to P632.678.700; P633 version prior to P633.678.700; P634 version prior to P634.678.700; P633 version P633.680.700 only; P634 version P634.680.700 only; P138 version prior to P138.677.700; P436 version prior to P436.677.701; P438 version prior to P438.677.701; P638 version prior to P638.677.700; C434 version prior to C434.679.700 |
| Schneider Electric | Easergy MiCOM P40 | Series model numbers with Protocol Option bit as G, H or L and all firmware versions |
| Schneider Electric | EcoStruxure™ Power Automation System Gateway (EPAS-GTW) | Version 6.4.616.200.100 and prior |
| Schneider Electric | EcoStruxure™ Power Automation System User Interface (EPAS-UI) | Version 3.0.3 and prior |
| Schneider Electric | EcoStruxure™ Power Operation | Version 2022 CU6 and prior; Version 2024 CU2 and prior |
| Schneider Electric | iPMFLS | Version 64.2025.0.13 and prior |
| Schneider Electric | PowerLogic™ P5 Protection Relay | V02.502.103 and prior |
| Schneider Electric | PowerLogic™ P7 Protection and Control Platform | V02.002.002 and prior |
| Schneider Electric | PowerLogic™ T300 | Version 2.9.4 and prior |
| Schneider Electric | PowerLogic™ T500 | Version 11.08.02 and prior |
| Schneider Electric | Saitel DP | Version 11.06.36 and prior |
| Schneider Electric | EasyLogic T150 (formerly Saitel DR) | Version 11.06.30 and prior |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-4827?
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.
How severe is CVE-2026-4827?
CVE-2026-4827 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2026-4827?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-4827?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST