CVE-2023-46283· NVD / CVE Program· CNA siemens

A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATI

A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo (All versions < V4.1), SINEC NMS (All versions < V2.0 SP1), Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions < V17 Update 8), Totally Integrated Automation Portal (TIA Portal) V18 (All versions < V18 Update 3). The affected application contains an out of bounds write past the end of an allocated buffer when handling specific requests on port 4002/tcp. This could allow an attacker to crash the application. The corresponding service is auto-restarted after the crash.

HighCVSS 7.5 · v3.1—No exploit No fix recorded

BDU:2023-08846

Published: Dec 12, 2023
Updated: Jun 17, 2026
EPSS: 0.9% · 58th percentile
CWE: CWE-120

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Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.9%

CNA vs NVD score

NVD: —
CNA · siemens: 7.5; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
siemens	opcenter quality	cpe:2.3:a:siemens:opcenter_quality
siemens	simatic pcs neo	cpe:2.3:a:siemens:simatic_pcs_neo
siemens	sinumerik integrate runmyhmi \/automotive	cpe:2.3:a:siemens:sinumerik_integrate_runmyhmi_\/automotive
siemens	totally integrated automation portal	cpe:2.3:a:siemens:totally_integrated_automation_portal

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

siemens opcenter qualityall versions
siemens simatic pcs neobefore 4.1
siemens sinumerik integrate runmyhmi /automotiveall versions
siemens totally integrated automation portal14.0 and later · before 15
siemens totally integrated automation portal15 and later · before 16
siemens totally integrated automation portal16 and later · before 17
siemens totally integrated automation portal17 and later · before 18
siemens totally integrated automation portalall versions
siemens totally integrated automation portal18

Versions reported by the vendor

Affected version ranges reported by the assigning authority (siemens). Independent of NVD's CPE analysis and usually ahead of it.

Siemens Opcenter Execution Foundation
- before V2407affected
Siemens Opcenter Quality
- before V2312affected
Siemens SIMATIC PCS neo
- before V4.1affected
Siemens SINEC NMS
- before V2.0 SP1affected
Siemens Totally Integrated Automation Portal (TIA Portal) V14
- all versionsaffected
Siemens Totally Integrated Automation Portal (TIA Portal) V15.1
- all versionsaffected
Siemens Totally Integrated Automation Portal (TIA Portal) V16
- all versionsaffected
Siemens Totally Integrated Automation Portal (TIA Portal) V17
- before V17 Update 8affected
Siemens Totally Integrated Automation Portal (TIA Portal) V18
- before V18 Update 3affected

Same product

siemens: all records

Other highest-scoring records for the same primary product.

CVE-2021-27389A vulnerability has been identified in Opcenter Quality (All versions < V12.2), QMS Automotive (All versions < V12.30).
39Monitor
CVE-2024-33698A vulnerability has been identified in Opcenter Quality (All versions < V2406), Opcenter RDnL (All versions < V2410), SIMATIC PCS neo V4.0 (
37Monitor
CVE-2023-46281A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATI
35Monitor
CVE-2024-41979A vulnerability has been identified in SmartClient modules Opcenter QL Home (SC) (All versions >= V13.2 < V2506), SOA Audit (All versions >=
30Monitor
CVE-2023-46285A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATI
30Monitor
CVE-2023-46284A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATI
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2023-462840 days apartA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATI
30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

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

nvd-secondary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

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Data sources and verification

CNA: siemens

CVE.org (CNA)Jan 14, 2025, 10:29 AM UTC
NVDJun 17, 2026, 2:30 AM UTC
FIRST EPSSOct 5, 2026, 12:00 AM UTC

Each line is when that source was last processed for this record.

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