CVE-2023-0597

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2023-02-23. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
—
EPSS
22.2%
KEV
Not listed

Published

February 23, 2023

Last Modified

March 12, 2025

References (5)

Vendor Advisories for CVE-2023-0597(3)

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

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure (4.15.0.1171.137) @ trusty2026-05-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1033 (5.4.0-1033.37) @ focal2026-05-25ubuntu
ubuntulinux-tools-iot (5.4.0.1025.23) @ focal2026-05-25ubuntu
ubuntulinux-tools-aws-hwe (4.15.0.1162.145) @ xenial2026-05-25ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.219.3) @ xenial2026-05-25ubuntu
ubuntulinux-tools-oem-22.04a (5.17.0.1034.32) @ jammy2026-05-25ubuntu
ubuntulinux-tools-oem-22.04b (6.0.0.1019.19) @ jammy2026-05-25ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.79.76) @ jammy2026-05-25ubuntu
ubuntulinux-tools-gkeop-5.15 (5.15.0.1025.24) @ jammy2026-05-25ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1045.41) @ jammy2026-05-25ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1043.50~20.04.1.22) @ focal2026-05-25ubuntu
redhatkernel-0:5.14.0-284.95.1.el9_22024-12-04redhat
redhatkernel-rt-0:5.14.0-284.95.1.rt14.380.el9_22024-12-04redhat
redhatkernel-0:4.18.0-477.81.1.el8_82024-11-26redhat
redhatkernel-0:4.18.0-372.95.1.el8_62024-03-06redhat
redhatkernel-0:4.18.0-513.5.1.el8_92023-11-14redhat
redhatkernel-rt-0:4.18.0-513.5.1.rt7.307.el8_92023-11-14redhat
redhatkernel-0:5.14.0-362.8.1.el9_32023-11-07redhat

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(2)

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

Additional Vendor Advisories

(15)

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 14× 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 101 total refreshes for this CVE.

  1. 2026-07-22 23:05 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
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  43. 2026-06-10 15:17 UTCOSV refresh
  44. 2026-06-10 13:21 UTCEPSS rescore
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  74. 2026-05-25 06:15 UTCEG score recompute
  75. 2026-05-25 06:15 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-0597?
CVE-2023-0597 is a medium vulnerability published on February 23, 2023. A flaw possibility of memory leak in the Linux kernel cpuentryarea mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.
When was CVE-2023-0597 disclosed?
CVE-2023-0597 was first published in the National Vulnerability Database on February 23, 2023, with the most recent update on March 12, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-0597 actively exploited?
CVE-2023-0597 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-0597?
CVE-2023-0597 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-0597?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-0597, 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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