Is CVE-2019-4087 actively exploited?

No active exploitation of CVE-2019-4087 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-4087 be exploited remotely?

Yes. CVE-2019-4087 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-4087?

CVE-2019-4087 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2019-4087

CWE-787Published: July 2, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

IBM Spectrum Protect Servers 7.1 and 8.1 and Storage Agents are vulnerable to a stack-based buffer overflow, caused by improper bounds checking by servers and storage agents in response to specifically crafted communication exchanges. By sending an overly long request, a remote attacker could overflow a buffer and execute arbitrary code on the system with instance id privileges or cause the server or storage agent to crash. IBM X-Force ID: 157510.

NVD Source

Technical Analysis

CVE-2019-4087 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 9.8.

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