CVE-2018-10940

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-14. 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 week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

The cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c in the Linux kernel before 4.16.6 allows local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

May 9, 2018

Last Modified

November 21, 2024

References (32)

Vendor Advisories for CVE-2018-10940(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-extra-4.4.0-128-generic (4.4.0-128.154~14.04.1) @ trusty2026-05-28ubuntu
ubuntulinux-image-extra-3.13.0-157-generic (3.13.0-157.207) @ trusty2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-24-lowlatency (4.15.0-24.26) @ bionic2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-128-generic (4.4.0-128.154) @ xenial2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-24-lowlatency (4.15.0-24.26~16.04.1) @ xenial2026-05-28ubuntu
redhatkernel-rt-0:3.10.0-957.rt56.910.el72018-10-30redhat
redhatkernel-alt-0:4.14.0-115.el7a2018-10-30redhat
redhatkernel-0:3.10.0-957.el72018-10-30redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

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 10× in last 7d / 44× 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.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-26 14:51 UTCEPSS rescore
  3. 2026-07-23 14:15 UTCEPSS rescore
  4. 2026-07-23 01:32 UTCEG score recompute
  5. 2026-07-22 22:12 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
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  8. 2026-07-21 13:17 UTCOSV refresh
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  1. 2026-07-09 19:06 UTCEPSS rescore
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  8. 2026-07-05 02:27 UTCEPSS rescore
  9. 2026-07-04 08:56 UTCOSV refresh
  10. 2026-07-04 06:28 UTCEPSS rescore
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  16. 2026-06-29 14:03 UTCEPSS rescore
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  18. 2026-06-28 04:53 UTCEPSS rescore
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  37. 2026-06-15 20:13 UTCOSV refresh
  38. 2026-06-15 17:45 UTCEPSS rescore
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  45. 2026-06-11 13:57 UTCEPSS rescore
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  68. 2026-05-28 08:21 UTCEG score recompute
  69. 2026-05-28 08:21 UTCVendor advisory
  70. 2026-05-28 08:21 UTCGHSA enrichment
  71. 2026-05-27 13:38 UTCEPSS rescore
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  73. 2026-05-26 13:42 UTCEPSS rescore
  74. 2026-05-26 07:17 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-10940?
CVE-2018-10940 is a medium vulnerability published on May 9, 2018. The cdromioctlmediachanged function in drivers/cdrom/cdrom.c in the Linux kernel before 4.16.6 allows local attackers to use a incorrect bounds check in the CDROM driver CDROMMEDIA_CHANGED ioctl to read out kernel memory.
When was CVE-2018-10940 disclosed?
CVE-2018-10940 was first published in the National Vulnerability Database on May 9, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-10940 actively exploited?
CVE-2018-10940 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all scored CVEs.
What is the CVSS score of CVE-2018-10940?
CVE-2018-10940 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2018-10940?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-10940, 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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