How severe is CVE-2023-0881?

CVE-2023-0881 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-0881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0881?

CVE-2023-0881 affects Canonical Linux-bluefield. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0881?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-0881 have an EU (EUVD) identifier?

Yes. CVE-2023-0881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-12870.

When was CVE-2023-0881 published?

CVE-2023-0881 was published on 2025-03-31 and last updated on 2026-06-17.

CVE-2023-0881

CVE-2023-0881 is a high-severity vulnerability in Canonical Linux-bluefield with a CVSS 3.x base score of 7.5. 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-1333.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-12870
Weakness: CWE-1333
Affected product: Canonical Linux-bluefield
Published: 2025-03-31
Last modified: 2026-06-17

Description

Running DDoS on tcp port 22 will trigger a kernel crash. This issue is introduced by the backport of a commit regarding nft_lookup without the subsequent fixes that were introduced after this commit. The resolution of this CVE introduces those commits to the linux-bluefield package.

Frequently asked questions

What is CVE-2023-0881?: Running DDoS on tcp port 22 will trigger a kernel crash. This issue is introduced by the backport of a commit regarding nft_lookup without the subsequent fixes that were introduced after this commit. The resolution of this CVE introduces those commits to the linux-bluefield package.
How severe is CVE-2023-0881?: CVE-2023-0881 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-0881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0881?: CVE-2023-0881 affects Canonical Linux-bluefield. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-0881 have an EU (EUVD) identifier?: Yes. CVE-2023-0881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-12870.
When was CVE-2023-0881 published?: CVE-2023-0881 was published on 2025-03-31 and last updated on 2026-06-17.

References

https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2006397

Affected products (1)

cpe:2.3:a:canonical:linux-bluefield:*:*:*:*:*:*:*:*

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