Is CVE-2026-43423 in the CISA KEV catalog?

No. CVE-2026-43423 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-43423?

CVE-2026-43423 has an EPSS score of 0.09% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-43423?

Upgrade linux on debian unstable to 6.19.10-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-43423

UNSCORED

NVD

Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

How to fix

Remediation Available

linuxDebian

Fixed in:6.19.10-1CVE-2026-43423

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.09%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

Embed a live status badge for CVE-2026-43423

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.