JT2Go: Out-of-bounds Read
CVE-2024-26275 is a high-severity out-of-bounds read vulnerability in JT2Go from Siemens, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists versions V2312.0004, 2312.0004 as the first without the flaw, so updating JT2Go to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.19% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update JT2Go to V2312.0004 or 2312.0004, whichever matches your release line, or a later version.
- Update Parasolid V35.1 to V35.1.254 or a later version.
- Update Parasolid V36.0 to V36.0.207 or a later version.
- Read the advisory on cert-portal.siemens.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | JT2Go | before V2312.0004; before 2312.0004 | V2312.0004, 2312.0004 |
| Siemens | Parasolid V35.1 | before V35.1.254 | V35.1.254 |
| Siemens | Parasolid V36.0 | before V36.0.207 | V36.0.207 |
| Siemens | Parasolid V36.1 | before V36.1.147 | V36.1.147 |
| Siemens | Teamcenter Visualization V14.2 | before V14.2.0.12 | V14.2.0.12 |
| Siemens | Teamcenter Visualization V14.3 | before V14.3.0.9 | V14.3.0.9 |
| Siemens | Teamcenter Visualization V2312 | before V2312.0004 | V2312.0004 |
| Siemens | parasolid | before 35.1.254; before 36.0.207; before 36.1.147 | 35.1.254, 36.0.207, 36.1.147 |
| Siemens | teamcenter_visualization | 14.2 and later; 14.3 up to, but not including, 14.3.0.9; 2312 up to, but not including, 2312.0004 | 14.3.0.9, 2312.0004 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (siemens.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.3 | High | CNA (siemens.com) |
| CVSS 3.1 | 7.8 | High | CNA (siemens.com) |
Official description
A vulnerability has been identified in JT2Go (All versions < V2312.0004), Parasolid V35.1 (All versions < V35.1.254), Parasolid V36.0 (All versions < V36.0.207), Parasolid V36.1 (All versions < V36.1.147), Teamcenter Visualization V14.2 (All versions < V14.2.0.12), Teamcenter Visualization V14.3 (All versions < V14.3.0.9), Teamcenter Visualization V2312 (All versions < V2312.0004). The affected applications contain an out of bounds read past the end of an allocated structure while parsing specially crafted X_T files. This could allow an attacker to execute code in the context of the current process.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in JT2Go
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Out-of-bounds Read vulnerabilities
- 9.1 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 7.7 High severity
- 7.1 High severity
- 7.8 High severity
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