Use After Free in Labcenter Proteus
CVE-2026-42958
The application contains a use-after-free vulnerability that can be exploited to cause memory corruption while parsing specially crafted files. This could allow an attacker to execute arbitrary code in the context of the current process.
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: 0.002 (7.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Labcenter Proteus — versions 9.1_SP4_Build-42914
Weakness classification (CWE)
References
- www.cisa.gov/news-events/ics-advisories/icsa-26-188-06 (government-resource)
Frequently asked questions
- What is CVE-2026-42958?
- CVE-2026-42958 is a high-severity vulnerability in Labcenter Proteus, classified under Use After Free. CVSS score: 7.8/10. Published 2026-07-07.
- How severe is CVE-2026-42958?
- High severity. CVSS v3 base score is 7.8 out of 10.