How severe is CVE-2026-47337?

CVE-2026-47337 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-47337 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47337?

CVE-2026-47337 primarily affects Canonical Ubuntu Linux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-47337?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-47337 have an EU (EUVD) identifier?

Yes. CVE-2026-47337 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32992.

When was CVE-2026-47337 published?

CVE-2026-47337 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-47337

CVE-2026-47337 is a low-severity vulnerability in Canonical Ubuntu Linux with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32992
Weakness: CWE-476
Affected product: Canonical Ubuntu Linux
Published: 2026-05-28
Last modified: 2026-06-17

Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Frequently asked questions

What is CVE-2026-47337?: Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.
How severe is CVE-2026-47337?: CVE-2026-47337 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-47337 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47337?: CVE-2026-47337 primarily affects Canonical Ubuntu Linux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-47337?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-47337 have an EU (EUVD) identifier?: Yes. CVE-2026-47337 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32992.
When was CVE-2026-47337 published?: CVE-2026-47337 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9f03f0012a2367efae1edb4798f1c5103aeb6cbc

Affected products (3)

cpe:2.3:o:canonical:ubuntu_linux:6.8:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:6.17:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:7.0:*:*:*:*:*:*:*

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