CVE-2017-7472

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 5.5Exploit: Exploit-DB (verified) · public exploitExposed: 0

A fix is available — apply it.

The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
55(Track)
EG Risk 55/100SSVC: 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%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

May 11, 2017

Last Modified

June 17, 2026

References (30)

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-raspi2 (4.10.0.1006.8) @ zesty2026-05-22ubuntu
ubuntulinux-image-extra-4.10.0-27-generic (4.10.0-27.30~16.04.2) @ xenial2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-79-generic (4.4.0-79.100~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-132-generic (3.13.0-132.181) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-79-generic (4.4.0-79.100) @ xenial2026-05-22ubuntu
ubuntulinux-image-3.13.0-132-generic-lpae (3.13.0-132.181~precise1) @ precise2026-05-22ubuntu
redhatkernel-0:3.10.0-693.17.1.el72018-01-25redhat
redhatkernel-rt-1:3.10.0-693.17.1.rt56.604.el6rt2018-01-25redhat
redhatkernel-rt-0:3.10.0-693.17.1.rt56.636.el72018-01-25redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.9.25-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.9.25-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.9.25-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.9.25-1—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
linux3.2.41-2 ... 3.2.86-1 (64 versions)3.2.88-1—

Weakness Classification(1)

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

All Vendor Advisories

(9)

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 4× in last 7d / 23× 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 150 total refreshes for this CVE.

  1. 2026-08-25 13:44 UTCEPSS rescore
  2. 2026-08-23 00:14 UTCEPSS rescore
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  1. 2026-07-23 14:15 UTCEPSS rescore
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  4. 2026-07-22 14:04 UTCEPSS rescore
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  21. 2026-07-12 05:43 UTCEPSS rescore
  22. 2026-07-11 23:22 UTCOSV refresh
  23. 2026-07-11 08:24 UTCEPSS rescore
  24. 2026-07-09 19:06 UTCEPSS rescore
  25. 2026-07-08 15:11 UTCEPSS rescore
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  46. 2026-06-23 21:30 UTCEPSS rescore
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  48. 2026-06-23 06:00 UTCOSV refresh
  49. 2026-06-21 14:54 UTCEPSS rescore
  50. 2026-06-21 14:54 UTCEPSS rescore
  51. 2026-06-21 01:57 UTCEPSS rescore
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  74. 2026-06-06 03:52 UTCOSV refresh
  75. 2026-06-05 22:44 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-42136✓ verified
    First seen Jun 7, 2017

    Linux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service

    Open source ↗

Frequently asked(5)

What is CVE-2017-7472?
CVE-2017-7472 is a medium vulnerability published on May 11, 2017. The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEYREQKEYDEFLTHREADKEYRING keyctlsetreqkey_keyring calls.
When was CVE-2017-7472 disclosed?
CVE-2017-7472 was first published in the National Vulnerability Database on May 11, 2017, 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-2017-7472 actively exploited?
CVE-2017-7472 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 18.3% of all scored CVEs.
What is the CVSS score of CVE-2017-7472?
CVE-2017-7472 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2017-7472?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-7472, 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-2017-7472

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