vciy

CVE-2023-2685

INDEX BUILT · 2026-09-20

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Unquoted Service Path in ABB AO-OPC

CVE-2023-26854 of 4 sources documented this
18

rank 18 = 0 + 16 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00167  ·  without this subject the record ranks 18

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.3, from NVD  ·  without this subject the record ranks 2

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 18

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 16

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 18

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$8,330over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$8,330 = $4.99M incident cost x 1 exposure x 0.00167 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00167EPSSNOT IN KEVas of 2026-09-20
Severity7.2 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2023-07-29, 1096 days at 0.00, as of 2026-07-29. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
ABB7.2 HIGHreceipt
NVD6.3 MEDIUMreceipt
What it costs
ABBComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
NVDComplete confidentiality, integrity and availability lossreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running ABB AO-OPC? Check your version

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · high privileges required · user interaction required · high attack complexityreceipt
ImpactComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-428 Unquoted Search Path or Elementreceipt
Published consequencesCWE-428: Confidentiality, Integrity, Availability: Execute Unauthorized Code or Commands[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 29 Jul 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.2 HIGHreceipt
CVSS, NVD6.3 MEDIUMreceipt
Exploit probability0.00167 · top 94% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byABBreceipt
Recorded changes16 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productABB AO-OPCreceipt
Published rangesabb ao-opc >= 1.0.0 <= 3.2.1receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Local accessrequires high privileges, require…ABB AO-OPCCWE-428 weaknessAdjacent componentsscope changeFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-428scope changedata compromise

What it is stated by the CNA

A vulnerability was found in AO-OPC server versions mentioned above. As the directory information for the service entry is not enclosed in quotation marks, potential attackers could possibly call up another application than the AO-OPC server by starting the service. The service might be started with system user privileges which could cause a shift in user access privileges. It is unlikely to exploit the vulnerability in well maintained Windows installations since the attacker would need write access to system folders. An update is available that resolves the vulnerability found during an internal review in the product AO-OPC = 3.2.1 receipt

NVD's analysis a second authority

severity
6.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
weakness
CWE-428
affected versions
abb ao-opc >= 1.0.0 <= 3.2.1
also scored by
[email protected] 7.2 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

The CNA scored it 7.2 and NVD 6.3. Both are shown because both were published; we do not pick one.

check it yourself search.abb.com receipt

Movement the material steps

29 Jul 20230.00043
17 Mar 20250.00046 · scoring model v2025.03.14
15 Jun 20260.00153 · scoring model v2026.06.15
29 Jul 20260.00167
Show all 16 observations
29 Jul 20230.00043
17 Feb 20250.00044
17 Mar 20250.00046
19 Mar 20250.00049
29 Mar 20250.00096
30 Mar 20250.00049
15 Apr 20250.0004
1 May 20250.00038
18 Nov 20250.00049
21 Nov 20250.00038
11 Jan 20260.0004
22 Apr 20260.00044
24 May 20260.00047
15 Jun 20260.00153
16 Jul 20260.00166
29 Jul 20260.00167

16 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00167Published2023-07-28Index as of2026-07-29

The record had been public for 3 years when this index was last written.

Published 2023-07-28 receipt · Index as of 2026-07-29 derived

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What usually comes next

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