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, 07:57 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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Siemens Opcenter Quality | Affected
| Fixed in– |
AI-suggested
1. Immediate deployment of Siemens-provided patches or updates once available is paramount. 2. 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. 3. Employ intrusion detection and prevention systems (IDS/IPS) to monitor for anomalous traffic patterns targeting the affected products. 4. Conduct thorough vulnerability scans across the environment to identify all instances of the affected Siemens software versions. 5. Limit exposure by disabling or restricting remote access to affected components where feasible. 6. Implement application whitelisting and endpoint protection to detect and block unauthorized code execution. 7. Maintain robust backup and recovery procedures to minimize operational impact in case of compromise. 8. Train OT and IT staff to recognize signs of exploitation and respond promptly. 9. 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.