How severe is CVE-2026-5496?

CVE-2026-5496 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5496 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5496?

CVE-2026-5496 affects Labcenter Proteus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5496?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5496 have an EU (EUVD) identifier?

Yes. CVE-2026-5496 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21672.

When was CVE-2026-5496 published?

CVE-2026-5496 was published on 2026-04-11 and last updated on 2026-06-17.

CVE-2026-5496

CVE-2026-5496 is a high-severity vulnerability in Labcenter Proteus with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-843.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21672
Weakness: CWE-843
Affected product: Labcenter Proteus
Published: 2026-04-11
Last modified: 2026-06-17

Description

Labcenter Electronics Proteus PDSPRJ File Parsing Type Confusion Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Labcenter Electronics Proteus. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDSPRJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25717.

Frequently asked questions

What is CVE-2026-5496?: Labcenter Electronics Proteus PDSPRJ File Parsing Type Confusion Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Labcenter Electronics Proteus. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDSPRJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25717.
How severe is CVE-2026-5496?: CVE-2026-5496 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5496 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5496?: CVE-2026-5496 affects Labcenter Proteus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5496?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5496 have an EU (EUVD) identifier?: Yes. CVE-2026-5496 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21672.
When was CVE-2026-5496 published?: CVE-2026-5496 was published on 2026-04-11 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-26-254/

Affected products (1)

cpe:2.3:a:labcenter:proteus:8.17:sp5:*:*:*:*:*:*

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