Is CVE-2026-22553 actively exploited?

No active exploitation of CVE-2026-22553 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-22553 be exploited remotely?

Yes. CVE-2026-22553 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-22553?

CVE-2026-22553 has a CVSS score of 9.8 (CRITICAL) and an EPSS exploitation probability of 0.42%.

HOME VULNERABILITIESCVE-2026-22553

CRITICAL

CVE-2026-22553

CWE-78Published: February 24, 2026· Updated: Feb 27, 2026

9.8

CVSS v3.1

EPSS:0.42%probability of exploitation in 30 daysPercentile:61.7th

Official Description

All versions of InSAT MasterSCADA BUK-TS are susceptible to OS command injection through a field in its MMadmServ web interface. Malicious users that use the vulnerable endpoint are potentially able to cause remote code execution.

NVD Source

Technical Analysis

CVE-2026-22553 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.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

insat1 product

masterscada

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-055-01.json

News & Research Mentioning CVE-2026-22553

InSAT MasterSCADA BUK-TS

CISA Alerts· Feb 24, 2026

View CSAF Summary Successful exploitation of these vulnerabilities may allow remote code execution. The following versions of InSAT MasterSCADA BUK-TS are affected: MasterSCADA BUK-TS vers:all/* (CVE-2026-21410, CVE-2026-22553) CVSS Vendor Equipment Vulnerabilities v3 9.8 InSAT InSAT MasterSCADA BUK-TS Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Water and Wastewater Countries/Areas Deployed: Worldwide Company Headquarters Location: Russia Vulnerabilities Expand All + CVE-2026-21410 InSAT MasterSCADA BUK-TS is susceptible to SQL Injection through [xlite_meta score:73 src:CISA Alerts xlite_fp:7b39d7628b76adcd0d85f1872767007f8c25604ab1f048de9aeb58330acbd0e0]