Is CVE-2026-53257 in the CISA KEV catalog?

No. CVE-2026-53257 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-53257?

CVE-2026-53257 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-53257?

Upgrade linux on debian unstable to 7.0.13-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-53257

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: enforce HE/EHT cap/oper consistency Xiang Mei reports that mac80211 could crash if eht_cap is set but eht_oper isn't. Rather than fixing that for the individual user(s), enforce that both HE/EHT have consistent elements.

How to fix

Remediation Available

linuxDebian

Fixed in:7.0.13-1CVE-2026-53257

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

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references2

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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 2026-06-30.