An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.
CVE-2023-46862
Score 4.7 from GitHub Security Advisory published 2023-10-29. NVD baseline CVSS 4.7; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.7
- EG Score
- 4.7(medium)
- EG Risk
- 26(Track)EG Risk 26/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity47% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 13.5%
- KEV
- Not listed
Published
October 29, 2023
Last Modified
June 17, 2026
References (6)
- cve@mitrehttps://bugzilla.kernel.org/show_bug.cgi?id=218032#c4
- cve@mitrehttps://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.kernel.org/show_bug.cgi?id=218032#c4
- af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Vendor Advisories for CVE-2023-46862(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(10)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-tools-oem-22.04c (6.1.0.1027.28) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-azure (6.5.0.1015.17) @ mantic | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-kvm (5.15.0.1052.48) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-20.04-edge (5.15.0.100.97) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-aws-lts-22.04 (5.15.0.1056.55) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-22.04-edge (6.5.0.17.19) @ mantic | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-raspi-nolpae (5.15.0.1048.46) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-oracle-lts-22.04 (5.15.0.1053.49) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-intel-iotg (5.15.0.1050.50) @ jammy | 2026-05-24 | ubuntu |
| redhat | kernel-0:5.14.0-427.13.1.el9_4 | 2024-04-30 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(10)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2023-468622023-11-08
An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.
- UbuntuUSN-6533-1MEDIUM
Linux kernel (OEM) vulnerabilities
- UbuntuUSN-6624-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6652-1MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-6686-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6686-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6686-3MEDIUM
Linux kernel (Oracle) vulnerabilities
- UbuntuUSN-6686-4MEDIUM
Linux kernel (KVM) vulnerabilities
- UbuntuUSN-6686-5MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
- UbuntuUSN-6705-1MEDIUM
Linux kernel (AWS) vulnerabilities
Data Freshness Timeline
(refreshed 12× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 02:27 UTCEG score recompute
- 2026-07-22 23:14 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-06-09 16:47 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
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- 2026-05-24 14:55 UTCEG score recompute
- 2026-05-24 14:55 UTCVendor advisory
- 2026-05-24 14:55 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2023-46862?
When was CVE-2023-46862 disclosed?
Is CVE-2023-46862 actively exploited?
What is the CVSS score of CVE-2023-46862?
How do I remediate CVE-2023-46862?
Dependency Blast Radius
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