HOMEVULNERABILITIESCVE-2023-0635
CRITICAL

CVE-2023-0635

CWE-1391Published: June 5, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Improper Privilege Management vulnerability in ABB Ltd. ASPECT®-Enterprise on ASPECT®-Enterprise, Linux (2CQG103201S3021, 2CQG103202S3021, 2CQG103203S3021, 2CQG103204S3021 modules), ABB Ltd. NEXUS Series on NEXUS Series, Linux (2CQG100102R2021, 2CQG100104R2021, 2CQG100105R2021, 2CQG100106R2021, 2CQG100110R2021, 2CQG100112R2021, 2CQG100103R2021, 2CQG100107R2021, 2CQG100108R2021, 2CQG100109R2021, 2CQG100111R2021, 2CQG100113R2021 modules), ABB Ltd. MATRIX Series on MATRIX Series, Linux (2CQG100102R1021, 2CQG100103R1021, 2CQG100104R1021, 2CQG100105R1021, 2CQG100106R1021 modules) allows Privilege Escalation.This issue affects ASPECT®-Enterprise: from 3.0;0 before 3.07.01; NEXUS Series: from 3.0;0 before 3.07.01; MATRIX Series: from 3.0;0 before 3.07.01.

NVD Source

Technical Analysis

CVE-2023-0635 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

abb38 product(s)
aspect-ent-2 firmwareaspect-ent-2aspect-ent-12 firmwareaspect-ent-12aspect-ent-256 firmwareaspect-ent-256aspect-ent-96 firmwareaspect-ent-96nexus-2128 firmwarenexus-2128nexus-2128-a firmwarenexus-2128-a+26
Source: NVD CPE · 38 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
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://search.abb.com/library/Download.aspx?DocumentID=2CKA000073B5403&LanguageCode=en&DocumentPartId=&Action=Launch
ADVISORYhttps://search.abb.com/library/Download.aspx?DocumentID=2CKA000073B5403&LanguageCode=en&DocumentPartId=&Action=Launch

All References (2)

→
https://search.abb.com/library/Download.aspx?DocumentID=2CKA000073B5403&LanguageCode=en&DocumentPartId=&Action=LaunchVendor Advisory
→
https://search.abb.com/library/Download.aspx?DocumentID=2CKA000073B5403&LanguageCode=en&DocumentPartId=&Action=LaunchVendor Advisory

Quick Facts

CVE IDCVE-2023-0635
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-1391
CISA KEVNo
Affected1 vendor(s)
PublishedJun 5, 2023

Related CVEs (CWE-1391)

CVE-2025-30519
9.8
CVE-2024-12728
9.8
CVE-2026-22886
9.8
CVE-2024-43698
9.8
CVE-2025-6077
9.8
CVE-2023-31240
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-0635 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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