CVE-2026-43284

View CSAF Summary Hitachi Energy is aware of Dirty Frag vulnerabilities that affect APM Edge product versions listed in this document. Successful exploitation of these vulnerabilities could result in impact on confidentiality, integrity and availability of the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy APM Edge Product are affected: APM Edge vers:APM_Edge/<=6.10 (CVE-2026-43284, CVE-2026-43500) CVSS Vendor Equipment Vulnerabilities v3 8.8 Hitachi Energy Hitachi Energy APM Edge Product Write-what-where Condition, Out-of-bounds Write Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2026-43284 CWE-123: Write-what-where Condition A vulnerability exists in the IPsec ESP subsystem (esp4, esp6) of the Linux kernel used in APM Edge that allows a local unprivileged user to escalate privileges to root. The flaw exists in how the kernel handles memory pages when processing ESP encrypted network packets. An attacker can craft a packet that causes the kernel to decrypt data directly into memory pages it does not own, including the cached copies of privileged operating system binaries. When one of those binaries is executed, the attacker's injected code runs with root privileges. In APM Edge, the vulnerable kernel modules (esp4, esp6) can be loaded by any local user and exploited. View CVE Details Affected Products Hitachi Energy APM Edge Product Vendor: Hitachi Energy Product Version: APM Edge versions 6.10 and prior Product Status: known_affected Remediations Mitigation Disable the esp4 and esp6 modules [2] Relevant CWE: CWE-123 Write-what-where Condition Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-43500 CWE-787: Out-of-bounds Write A vulnerability exists in the RxRPC protocol im

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