Siemens Parasolid patches X_T parsing flaw
An out-of-bounds read in Siemens Parasolid's X_T file parser could let attackers crash the app or execute code; Siemens has released fixes.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
Siemens has disclosed an out-of-bounds read vulnerability (CVE-2026-64629) in Parasolid, a 3D modeling engine widely used in CAD/CAM software across the critical manufacturing sector. The flaw occurs when the application parses specially crafted X_T format files, potentially allowing an attacker to crash the affected application or execute arbitrary code in the context of the current process.
The vulnerability affects Parasolid V38.0 versions prior to V38.0.235 and V38.1 versions prior to V38.1.230. Siemens has released patched versions and recommends all users update. There is no evidence of active exploitation; this is a vendor-disclosed vulnerability requiring a malicious file to be opened by a vulnerable Parasolid instance, making it a local/client-side attack vector rather than a remotely exploitable network flaw.
CISA republished the Siemens ProductCERT advisory (SSA-138516) for visibility. Organizations using Parasolid-based CAD/CAM/manufacturing software should apply the vendor patches and follow standard ICS network segmentation and hardening guidance.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/ics-advisories/icsa-26-225-10-0
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,445 reports from 149 sources, 666 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs