Is CVE-2026-46163 in the CISA KEV catalog?

No. CVE-2026-46163 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-46163?

CVE-2026-46163 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-46163?

CVE-2026-46163 has an EPSS score of 0.13% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-46163?

Upgrade linux on debian 13 to 6.12.88-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-46163

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.

CWE-129

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.88-1CVE-2026-46163

Fixed in:7.0.7-1CVE-2026-46163

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

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U

Exploit Intelligence

0.13%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Patch8

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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 2026-06-10.