This vulnerability allows local attackers to escalate privileges on vulnerable installations of ABB MicroSCADA 9.3 with FP 1-2-3.

published 2018-02-21 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11806

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

This vulnerability allows local attackers to escalate privileges on vulnerable installations of ABB MicroSCADA 9.3 with FP 1-2-3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the configuration of the access controls for the installed product files. The installation procedure leaves critical files open to manipulation by any authenticated user. An attacker can leverage this vulnerability to escalate privileges to SYSTEM. Was ZDI-CAN-5097.

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

ABB ABB MicroSCADA

Classification

Weakness

CWE-284 Improper Access Control
CWE-732 Incorrect Permission Assignment for Critical Resource

References

library.e.abb.com /public/7a88a74b12bb492ea138b1f2365d00f6/ABBVU-PGGA-33888_ABB_SoftwareVulnerabilityHandlingAdvisory_Rev_A.pdf?
mitigation, vendor-advisory
zerodayinitiative.com /advisories/ZDI-18-141
third-party-advisory, vdb-entry

Sources

CVE List CVE-2018-1168
NVD CVE-2018-1168

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Summary