How severe is CVE-2026-12579?

CVE-2026-12579 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-12579 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12579?

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-2026-12579 published?

CVE-2026-12579 was published on 2026-07-01.

CVE-2026-12579

CVE-2026-12579 is a high-severity vulnerability with a CVSS 3.x base score of 7.4. 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-288.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-288
Published: 2026-07-01
Last modified: 2026-07-01

Description

AS228T with Authentication Bypass Vulnerability

Frequently asked questions

What is CVE-2026-12579?: AS228T with Authentication Bypass Vulnerability
How severe is CVE-2026-12579?: CVE-2026-12579 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-12579 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-12579?: 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-2026-12579 published?: CVE-2026-12579 was published on 2026-07-01.

References

https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00012_AS228T%20Authentication%20Bypass%20Vulnerability%20(CVE-2026-12579).pdf

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