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VulnerabilityCVE-2024-33698Published 2024-09-10

CVE-2024-33698 — Siemens Opcenter Quality

criticalPublic exploit1 PoC repo

As of 2025-10-14, CVE-2024-33698 is a CRITICAL-severity vulnerability in Siemens Opcenter Quality, CVSS v3.1 9.8, EPSS 1.0% (63.3th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2024-33698, most recently “CVE-2024-49775: Unauthenticated Heap-Based Buffer Overflow in Siemens User Management Component (UMC) Enables Remote Code Execution”.

CVSS v3.1
9.8/10Critical
EPSS
1.0%Higher than 63.3% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
9.4/10Threadlinqs triage score
Published
Updated 2025-10-14
CVSS v3.1 9.8 (CRITICAL) · CVSS v4.0 9.3 · EPSS 1.0% (higher than 63.3% of all scored CVEs) · Priority 9.4/10 · Published 2024-09-10

Last updated:

What is CVE-2024-33698?

A vulnerability has been identified in Opcenter Quality (All versions < V2406), Opcenter RDnL (All versions < V2410), SIMATIC PCS neo V4.0 (All versions), SIMATIC PCS neo V4.1 (All versions < V4.1 Update 2), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1), SINEC NMS (All versions), SINEMA Remote Connect Client (All versions < V3.2 SP3), 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 5), Totally Integrated Automation Portal (TIA Portal) V19 (All versions < V19 Update 3). Affected products contain a heap-based buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to execute arbitrary code.

The record classifies CVE-2024-33698 under weakness class CWE-122. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 11 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 765 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0 base score
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS (FIRST)
1.0% probability of exploitation in the next 30 days, higher than 63.3% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
9.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2024-09-10, last modified 2025-10-14

Is CVE-2024-33698 being exploited?

Weaponised exploit code for CVE-2024-33698 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 29 in the Threadlinqs vulnerability feed.

Affected products and versions

  • Siemens: Opcenter Quality, Opcenter RDnL, SIMATIC PCS neo V4.0, SIMATIC PCS neo V4.1, SIMATIC PCS neo V5.0, SINEC NMS, SINEMA Remote Connect Client, Totally Integrated Automation Portal (TIA Portal) V16, Totally Integrated Automation Portal (TIA Portal) V17, Totally Integrated Automation Portal (TIA Portal) V18, Totally Integrated Automation Portal (TIA Portal) V19

How to fix CVE-2024-33698

No vendor patch reference has been recorded for CVE-2024-33698 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2024-33698

1 tracked threat in the Threadlinqs corpus references CVE-2024-33698, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on .

Other references