CVE-2018-7755

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
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
48.7%
KEV
Not listed

Published

March 8, 2018

Last Modified

November 21, 2024

References (26)

Vendor Advisories for CVE-2018-7755(2)

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-image-extra-4.4.0-130-generic (4.4.0-130.156~14.04.1) @ trusty2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-24-lowlatency (4.15.0-24.26) @ bionic2026-05-28ubuntu
ubuntulinux-image-extra-3.13.0-153-generic (3.13.0-153.203) @ trusty2026-05-28ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.153.143) @ precise2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-24-lowlatency (4.15.0-24.26~16.04.1) @ xenial2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-130-generic (4.4.0-130.156) @ xenial2026-05-28ubuntu
ubuntulinux-image-4.13.0-46-lowlatency (4.13.0-46.51) @ artful2026-05-28ubuntu
ubuntulinux-image-4.13.0-1031-oem (4.13.0-1031.35) @ xenial2026-05-28ubuntu
redhatkernel-rt-0:3.10.0-1062.rt56.1022.el72019-08-07redhat
redhatkernel-0:3.10.0-1062.el72019-08-06redhat

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

(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 13× in last 7d / 46× 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. 2026-07-23 01:37 UTCEG score recompute
  2. 2026-07-22 22:17 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-21 16:48 UTCOSV refresh
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  1. 2026-07-06 02:20 UTCEPSS rescore
  2. 2026-07-05 02:27 UTCEPSS rescore
  3. 2026-07-04 12:26 UTCOSV refresh
  4. 2026-07-04 06:28 UTCEPSS rescore
  5. 2026-07-04 06:28 UTCEPSS rescore
  6. 2026-07-01 15:03 UTCEPSS rescore
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  8. 2026-06-30 23:20 UTCEPSS rescore
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  10. 2026-06-29 14:03 UTCEPSS rescore
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  30. 2026-06-18 17:50 UTCEPSS rescore
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  35. 2026-06-16 00:09 UTCOSV refresh
  36. 2026-06-15 17:45 UTCEPSS rescore
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  61. 2026-05-29 13:41 UTCEPSS rescore
  62. 2026-05-28 10:45 UTCEG score recompute
  63. 2026-05-28 10:45 UTCVendor advisory
  64. 2026-05-28 10:44 UTCGHSA enrichment
  65. 2026-05-27 13:38 UTCEPSS rescore
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  68. 2026-05-26 07:17 UTCEPSS rescore
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  70. 2026-05-25 00:43 UTCOSV refresh

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-7755?
CVE-2018-7755 is a medium vulnerability published on March 8, 2018. An issue was discovered in the fdlockedioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover…
When was CVE-2018-7755 disclosed?
CVE-2018-7755 was first published in the National Vulnerability Database on March 8, 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-2018-7755 actively exploited?
CVE-2018-7755 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-7755?
CVE-2018-7755 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2018-7755?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-7755, 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.

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