What is the CVSS score of CVE-2023-0881?

CVE-2023-0881 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.4%.

Which versions of Linux Bluefield are affected by CVE-2023-0881?

Organizations using Running DDoS on tcp port 22 will trigger a kernel crash. This face notable risk from CVE-2023-0881, a input validation vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2023-0881?

Yes, a public proof-of-concept exploit is available for CVE-2023-0881. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2023-0881?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Linux Bluefield CVE-2023-0881

HIGH

Improper Input Validation (CWE-20)

2025-03-31 security@ubuntu.com

Denial Of Service Linux Bluefield

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:34 vuln.today

PoC Detected

Aug 26, 2025 - 17:13 vuln.today

Public exploit code

CVE Published

Mar 31, 2025 - 14:15 nvd

HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

Running DDoS on tcp port 22 will trigger a kernel crash. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. 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. Affected products include: Canonical Linux-Bluefield.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.