Is CVE-2025-39990 in the CISA KEV catalog?

No. CVE-2025-39990 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-39990?

CVE-2025-39990 has a CVSS v3 base score of 6.2 (Moderate).

What is the EPSS score for CVE-2025-39990?

CVE-2025-39990 has an EPSS score of 0.18% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-39990?

Upgrade linux on debian 13 to 6.12.57-1 or later.

CVE & CISA-KEV Catalog

CVE-2025-39990

MEDIUM

6.2

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the helper function is valid in get_helper_proto kernel test robot reported verifier bug [1] where the helper func pointer could be NULL due to disabled config option. As Alexei suggested we could check on that in get_helper_proto directly. Marking tail_call helper func with BPF_PTR_POISON, because it is unused by design. [1] https://lore.kernel.org/oe-lkp/[email protected]

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.57-1CVE-2025-39990

Fixed in:6.16.10-1CVE-2025-39990

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.18%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Other references3

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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 2025-10-16.