CVE-2026-23289

MEDIUMNVD 5.5

5.5

In the Linux kernel, the following vulnerability has been resolved:

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()

Fix a user triggerable leak on the system call failure path.

CVSS v3: 5.5
EG Score: 0.0(none)
EPSS: 8.2%
KEV: Not listed

Published

March 25, 2026

Last Modified

May 29, 2026

References (8)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/117942ca43e2e3c3d121faae530989931b7f67e1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/11ac61f4e9b7c48b0dd44661765e5ace3c441aa3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72fcfd4df46f2ee684c4776664d0cfc6c1746c9a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/972b72d7e2d8fe1400f1c7a8304c282c539b7e02
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d0148965dbca8cc8efa7e3d6e99940487bf661c0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da8eaa73bc37d004350ba68eb18b6ade8e49db52
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/deee46b37ebd8cc5ff810127883fca90f2412a7b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f67f1ad4029e9fa183141546de31987b254c9292

Vendor Advisories for CVE-2026-23289(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 18× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
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2026-05-29 13:44 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-21 22:43 UTCepss_batch

Frequently asked(5)

What is CVE-2026-23289?

CVE-2026-23289 is a medium vulnerability published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: IB/mthca: Add missed mthcaunmapuserdb() for mthcacreate_srq() Fix a user triggerable leak on the system call failure path.

When was CVE-2026-23289 disclosed?

CVE-2026-23289 was first published in the National Vulnerability Database on March 25, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-23289 actively exploited?

CVE-2026-23289 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-23289?

CVE-2026-23289 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2026-23289?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23289, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-23289

📅 Published

🔄 Last Modified

🔗 References (8)

📣 Vendor Advisories for CVE-2026-23289(2)