Zero-Day Exploit in Elastic EDR Permits Attackers to Evade Detection, Carry out Malicious Software, and Trigger Blue Screen of Death (BSOD)
A critical zero-day vulnerability has been publicly disclosed in Elastic's Endpoint Detection and Response (EDR) solution. The vulnerability, allegedly a NULL Pointer Dereference (CWE-476) in the kernel driver, has been claimed to allow attackers to bypass security measures, execute remote code, establish persistence via a malicious kernel driver, and cause persistent system crashes (BSOD).
However, Elastic's Security Engineering team has thoroughly investigated these claims and found no evidence supporting a vulnerability that bypasses EDR monitoring or enables remote code execution as described. Elastic acknowledges that the researcher demonstrated crashing the EDR driver only from another kernel driver, not from an unprivileged process.
Impact and Response
The alleged impact of the vulnerability includes EDR security bypass, remote code execution, persistence via a kernel driver, and persistent Denial of Service (BSOD). Elastic's official assessment is that no security breach as claimed has been verified, and currently, no patches or mitigations are required by their users.
Elastic continues to investigate the claims and has requested detailed exploit information from the researchers for validation. Users of Elastic Defend and related SIEM/EDR tools are advised to follow Elastic’s official communications but currently do not need to apply emergency patches or workarounds.
Ongoing Developments
Despite the public report of a serious zero-day affecting Elastic's EDR kernel driver, Elastic denies the validity of the claims regarding remote code execution or privilege bypass from unprivileged processes. Elastic continues to advance its security offerings with AI-driven SOC tools like Elastic AI SOC Engine (EASE) to enhance detection and triage, but this is unrelated to the 0-day issue.
Current Status
As of the latest updates in August 2025, the 0-day vulnerability is currently unconfirmed and no actionable exploit or patch exists. Users should monitor Elastic’s security advisories for any future developments.
[1] Original Report [2] Elastic's Response [3] Ashes Cybersecurity's Report [4] Elastic AI SOC Engine [5] Elastic's Latest Update
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