Is CVE-2025-40014 in the CISA KEV catalog?

No. CVE-2025-40014 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-40014?

CVE-2025-40014 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2025-40014?

CVE-2025-40014 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-40014?

Upgrade linux on debian unstable to 6.16.3-1 or later.

CVE & CISA-KEV Catalog

CVE-2025-40014

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: objtool, spi: amd: Fix out-of-bounds stack access in amd_set_spi_freq() If speed_hz < AMD_SPI_MIN_HZ, amd_set_spi_freq() iterates over the entire amd_spi_freq array without breaking out early, causing 'i' to go beyond the array bounds. Fix that by stopping the loop when it gets to the last entry, so the low speed_hz value gets clamped up to AMD_SPI_MIN_HZ. Fixes the following warning with an UBSAN kernel: drivers/spi/spi-amd.o: error: objtool: amd_set_spi_freq() falls through to next function amd_spi_set_opcode()

CWE-129

How to fix

Remediation Available

linuxDebian

Fixed in:6.16.3-1CVE-2025-40014

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-129 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-35592	Medium	6.3	51%	-	Fix
CVE-2021-35598	Medium	6.3	50%	-	Fix
CVE-2021-35594	Medium	6.3	50%	-	Fix
CVE-2022-35737	High	7.5	19%	-	Fix
CVE-2014-6317	High	7.1	18%	-	-
CVE-2023-40477	High	7.8	13%	-	Fix

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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 2025-10-30.