CVE-2023-45863

MEDIUMNVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2023-10-14. NVD baseline CVSS 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

A fix is available — apply it.

An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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 computed
Severity64% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

October 14, 2023

Last Modified

June 17, 2026

References (8)

Vendor Advisories for CVE-2023-45863(3)

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 / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.221.5) @ xenial2026-05-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1037 (5.4.0-1037.41) @ focal2026-05-24ubuntu
ubuntulinux-tools-azure-edge (4.15.0.1173.157) @ xenial2026-05-24ubuntu
ubuntulinux-tools-gcp-lts-20.04 (5.4.0.1122.124) @ focal2026-05-24ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1102.132) @ focal2026-05-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.250.256) @ xenial2026-05-24ubuntu
ubuntulinux-tools-aws (4.4.0.1164.168) @ xenial2026-05-24ubuntu
redhatkernel-rt-0:4.18.0-553.rt7.342.el8_102024-05-22redhat
redhatkernel-0:4.18.0-553.el8_102024-05-22redhat
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat

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.

Affected Packages

(6 across 5 ecosystems)
Debian:10(2)
PackageVulnerable rangeFixed inDependents
linux4.19.118-1 ... 4.19.98-1~bpo9+1 (45 versions)4.19.304-1—
linux-5.105.10.136-1~deb10u1 ... 5.10.197-1~deb10u1 (11 versions)5.10.205-2~deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (36 versions)5.10.205-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(8)

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.

Data Freshness Timeline

(refreshed 9× 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.

Showing the most recent 100 of 129 total refreshes for this CVE.

  1. 2026-08-10 23:57 UTCEPSS rescore
  2. 2026-08-09 13:44 UTCEPSS rescore
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  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:27 UTCEG score recompute
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  27. 2026-07-07 13:44 UTCEPSS rescore
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  42. 2026-06-28 04:55 UTCEPSS rescore
  43. 2026-06-27 07:34 UTCOSV refresh
  44. 2026-06-27 03:07 UTCEPSS rescore
  45. 2026-06-25 13:48 UTCEPSS rescore
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  72. 2026-06-09 18:17 UTCOSV refresh
  73. 2026-06-08 14:16 UTCEPSS rescore
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  75. 2026-06-07 15:24 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-45863?
CVE-2023-45863 is a medium vulnerability published on October 14, 2023. An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fillkobjpath out-of-bounds write.
When was CVE-2023-45863 disclosed?
CVE-2023-45863 was first published in the National Vulnerability Database on October 14, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-45863 actively exploited?
CVE-2023-45863 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.4% of all scored CVEs.
What is the CVSS score of CVE-2023-45863?
CVE-2023-45863 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2023-45863?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-45863, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-45863

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