Is CVE-2019-25466 actively exploited?

No active exploitation of CVE-2019-25466 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-25466 be exploited remotely?

No. CVE-2019-25466 requires local access to exploit.

What is the CVSS score of CVE-2019-25466?

CVE-2019-25466 has a CVSS score of 8.4 (HIGH).

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HIGH

CVE-2019-25466

CWE-787Published: March 11, 2026· Updated: Mar 12, 2026

8.4

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.9th

Official Description

Easy File Sharing Web Server 7.2 contains a local structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by creating a malicious username. Attackers can craft a username with a payload containing 4059 bytes of padding followed by a nseh value and seh pointer to trigger the overflow when adding a new user account.

NVD Source

Technical Analysis

CVE-2019-25466 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.