CVE-2024-33698: Siemens Opcenter Quality · Heap-based Buffer Overflow
Affects Siemens Opcenter QualitySource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 64% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Siemens Opcenter Quality | Affected
| Fixed in– |
AI-suggested
- Immediate deployment of Siemens-provided patches or updates once available is paramount.
- Until patches are released, isolate affected systems from untrusted networks by implementing strict network segmentation and firewall rules to restrict access to the UMC component.
- Employ intrusion detection and prevention systems (IDS/IPS) to monitor for anomalous traffic patterns targeting the affected products.
- Conduct thorough vulnerability scans across the environment to identify all instances of the affected Siemens software versions.
- Limit exposure by disabling or restricting remote access to affected components where feasible.
- Implement application whitelisting and endpoint protection to detect and block unauthorized code execution.
- Maintain robust backup and recovery procedures to minimize operational impact in case of compromise.
- Train OT and IT staff to recognize signs of exploitation and respond promptly.
- Collaborate with Siemens support and subscribe to their security advisories for timely updates.
Description
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.