CVE-2018-17182

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), public exploit)
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 7.8Exploit: Exploit-DB (verified) · public exploitExposed: 0

A fix is available — apply it.

An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
66(Track)
EG Risk 66/100SSVC: 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
Severity78% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
87%
KEV
Not listed

Published

September 19, 2018

Last Modified

November 21, 2024

References (32)

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-unsigned-4.15.0-36-lowlatency (4.15.0-36.39) @ bionic2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-137-generic (4.4.0-137.163~14.04.1) @ trusty2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-137-generic (4.4.0-137.163) @ xenial2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-36-lowlatency (4.15.0-36.39~16.04.1) @ xenial2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-1025-azure (4.15.0-1025.26~16.04.1) @ xenial2026-05-28ubuntu
redhatkernel-alt-0:4.14.0-115.2.2.el7a2018-11-26redhat

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

(7 across 6 ecosystems)
Debian:8(2)
PackageVulnerable rangeFixed inDependents
linux3.16.36-1 ... 3.16.7-ckt9-3~deb8u1~bpo70+1 (60 versions)3.16.59-1—
linux-4.94.9.110-1~deb8u14.9.110-3+deb9u5~deb8u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.18.10-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.18.10-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.18.10-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.18.10-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
linux4.9.107-1 ... 4.9.88-1~bpo8+1 (36 versions)4.9.110-3+deb9u5—

Weakness Classification(1)

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

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 29× 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 118 total refreshes for this CVE.

  1. 2026-08-20 22:51 UTCEPSS rescore
  2. 2026-08-19 17:00 UTCEPSS rescore
  3. 2026-08-18 13:43 UTCEPSS rescore
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  5. 2026-08-16 14:51 UTCEPSS rescore
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  16. 2026-08-06 12:15 UTCOSV refresh
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  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:34 UTCEG score recompute
  4. 2026-07-22 22:14 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
  6. 2026-07-21 15:21 UTCEPSS rescore
  7. 2026-07-21 05:18 UTCOSV refresh
  8. 2026-07-20 17:04 UTCEPSS rescore
  9. 2026-07-20 17:04 UTCEPSS rescore
  10. 2026-07-19 14:28 UTCEPSS rescore
  11. 2026-07-19 02:26 UTCEPSS rescore
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  13. 2026-07-16 16:59 UTCEPSS rescore
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  18. 2026-07-13 06:10 UTCEPSS rescore
  19. 2026-07-12 05:43 UTCEPSS rescore
  20. 2026-07-11 08:24 UTCEPSS rescore
  21. 2026-07-09 19:06 UTCEPSS rescore
  22. 2026-07-08 15:11 UTCEPSS rescore
  23. 2026-07-07 13:42 UTCEPSS rescore
  24. 2026-07-07 13:42 UTCEPSS rescore
  25. 2026-07-06 16:24 UTCEPSS rescore
  26. 2026-07-06 16:24 UTCEPSS rescore
  27. 2026-07-06 02:20 UTCEPSS rescore
  28. 2026-07-05 02:27 UTCEPSS rescore
  29. 2026-07-04 06:28 UTCEPSS rescore
  30. 2026-07-04 00:56 UTCOSV refresh
  31. 2026-07-02 16:54 UTCEPSS rescore
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  40. 2026-06-25 13:47 UTCEPSS rescore
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  42. 2026-06-24 14:02 UTCEPSS rescore
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  44. 2026-06-22 14:23 UTCEPSS rescore
  45. 2026-06-21 14:54 UTCEPSS rescore
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  47. 2026-06-21 01:57 UTCEPSS rescore
  48. 2026-06-21 01:57 UTCEPSS rescore
  49. 2026-06-19 19:23 UTCEPSS rescore
  50. 2026-06-18 17:50 UTCEPSS rescore
  51. 2026-06-18 17:50 UTCEPSS rescore
  52. 2026-06-17 17:50 UTCEPSS rescore
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  55. 2026-06-16 17:50 UTCEPSS rescore
  56. 2026-06-15 17:45 UTCEPSS rescore
  57. 2026-06-15 12:43 UTCOSV refresh
  58. 2026-06-13 22:58 UTCEPSS rescore
  59. 2026-06-13 22:58 UTCEPSS rescore
  60. 2026-06-12 23:09 UTCEPSS rescore
  61. 2026-06-11 13:57 UTCEPSS rescore
  62. 2026-06-10 22:16 UTCEPSS rescore
  63. 2026-06-10 13:19 UTCEPSS rescore
  64. 2026-06-08 14:14 UTCEPSS rescore
  65. 2026-06-08 14:14 UTCEPSS rescore
  66. 2026-06-07 15:22 UTCEPSS rescore
  67. 2026-06-07 15:22 UTCEPSS rescore
  68. 2026-06-06 13:45 UTCEPSS rescore
  69. 2026-06-06 13:45 UTCEPSS rescore
  70. 2026-06-05 22:45 UTCEPSS rescore
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  72. 2026-06-05 06:08 UTCEPSS rescore
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  74. 2026-06-04 13:10 UTCEPSS rescore
  75. 2026-06-04 13:10 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCjas502n/CVE-2018-17182
    First seen Sep 29, 2018

    Linux 内核VMA-UAF 提权漏洞（CVE-2018-17182）,0day

    Open source ↗
  • Exploit-DBEDB-45497✓ verified
    First seen Sep 26, 2018

    Linux Kernel - VMA Use-After-Free via Buggy vmacache_flush_all() Fastpath Local Privilege Escalation

    Open source ↗

Frequently asked(5)

What is CVE-2018-17182?
CVE-2018-17182 is a high vulnerability published on September 19, 2018. An issue was discovered in the Linux kernel through 4.18.8. The vmacacheflushall function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.
When was CVE-2018-17182 disclosed?
CVE-2018-17182 was first published in the National Vulnerability Database on September 19, 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-2018-17182 actively exploited?
CVE-2018-17182 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 12.8% of all scored CVEs.
What is the CVSS score of CVE-2018-17182?
CVE-2018-17182 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2018-17182?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-17182, 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-2018-17182

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