Vulnerability Snapshot
CVE-2026-2399 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Executive Summary
View CSAF Summary Successful exploitation of these vulnerabilities could allow attackers to overwrite critical files, forge or inject malicious log data, gain unauthorized account access, trigger denial‑of‑service conditions, truncate or alter logging information, reset user credentials, or expose sensitive information. The following versions of Schneider Electric PowerChute Serial Shutdown are affected: PowerChute Serial Shutdown CVSS Vendor Equipment Vulnerabilities v3 6.1 SuSE, Schneider Elec
Source
How Vulnios Detects This
Vulnios scans for this vulnerability using Trivy and Grype for CVE matching against your container images and OS package manifests and KEV cross-check that flags any host where this CVE is already on CISA's exploited list. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.
AI Security Advisor
Powered by Gemini
Get AI-powered security recommendations tailored to this specific threat — including risk assessment, detection guidance, MITRE ATT&CK mapping, and actionable remediation steps.
Related Threat Alerts
- Microsoft Patches Defender ‘RoguePlanet’ Vulnerability
- Microsoft to retire the OWA Light client in Exchange Server
- Microsoft expects more Windows security updates from AI-discovered flaws
- New Forg365 phishing platform uses AI to target Microsoft 365 accounts
- Microsoft patches RoguePlanet Defender zero-day vulnerability
- Microsoft Patches RoguePlanet Defender Flaw That Can Grant SYSTEM Privileges
Frequently Asked Questions
What is CVE-2026-2399?
CVE-2026-2399 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. View CSAF Summary Successful exploitation of these vulnerabilities could allow attackers to overwrite critical files, forge or inject malicious log data, gain unauthorized account access, trigger deni
Am I affected?
Affected technology is listed in the Affected Products section above. If your asset inventory contains any of them, assume in-scope until you can prove otherwise.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
Where can I track exploitation activity?
Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2026-2399. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.
How does Vulnios help with this?
Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.
Protect Your Organization
Monitor CVEs, scan for vulnerabilities, and get real-time threat alerts — all in one platform.
Get instant alerts on Telegram
Join our public channel for real-time critical CVE alerts.
Follow @vulnios