How severe is CVE-2026-12578?

CVE-2026-12578 has a CVSS 4.0 base score of 8.4, rated high severity.

Is CVE-2026-12578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12578?

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.

When was CVE-2026-12578 published?

CVE-2026-12578 was published on 2026-06-30.

CVE-2026-12578

CVE-2026-12578 is a high-severity vulnerability with a CVSS 4.0 base score of 8.4. 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-502.

Key facts

Severity: High (CVSS 4.0 base score 8.4)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Published: 2026-06-30
Last modified: 2026-06-30

Description

The affected product is vulnerable to a deserialization of untrusted data, which may allow an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2026-12578?: The affected product is vulnerable to a deserialization of untrusted data, which may allow an attacker to execute arbitrary code.
How severe is CVE-2026-12578?: CVE-2026-12578 has a CVSS 4.0 base score of 8.4, rated high severity.
Is CVE-2026-12578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-12578?: 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.
When was CVE-2026-12578 published?: CVE-2026-12578 was published on 2026-06-30.

References

https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00010_DTMSoft%20Project%20File%20Parsing%20Deserialization%20of%20Untrusted%20Data%20Remote%20Code%20(CVE-2026-12578)_v1.0.pdf

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