Is CVE-2018-25258 actively exploited?

No active exploitation of CVE-2018-25258 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-25258 be exploited remotely?

No. CVE-2018-25258 requires local access to exploit.

What is the CVSS score of CVE-2018-25258?

CVE-2018-25258 has a CVSS score of 8.4 (HIGH).

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HIGH

CVE-2018-25258

CWE-434Published: April 12, 2026· Updated: Apr 15, 2026

8.4

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.3th

Official Description

RGui 3.5.0 contains a local buffer overflow vulnerability in the GUI preferences dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can craft malicious input in the Language for menus and messages field to trigger a stack-based buffer overflow, execute a ROP chain for VirtualAlloc allocation, and achieve arbitrary code execution.

NVD Source

Technical Analysis

CVE-2018-25258 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.4.