Use After Free in Siemens Jt2go
CVE-2021-34324
A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Jt981.dll library in affected applications lacks proper validation of user-supplied data prior to performing further free operations on an object when parsing JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13420)
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Siemens Jt2go — versions All versions < V13.2
- Siemens Teamcenter Visualization — versions All versions < V13.2
- Siemens Teamcenter Visualization
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-862/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34324?
- CVE-2021-34324 is a high-severity vulnerability in Siemens Jt2go, classified under Use After Free. CVSS score: 7.8/10. Published 2021-07-13.
- How severe is CVE-2021-34324?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-34324 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.