CVE-2017-11176

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
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
88.2%
KEV
Not listed

Published

July 11, 2017

Last Modified

May 13, 2026

References (24)

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-extra-4.4.0-93-generic (4.4.0-93.116) @ xenial2026-05-22ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.135.125) @ precise2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-135-generic (3.13.0-135.184) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-93-generic (4.4.0-93.116~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-4.10.0-38-generic (4.10.0-38.42~16.04.1) @ xenial2026-05-22ubuntu
ubuntulinux-image-raspi2 (4.10.0.1020.21) @ zesty2026-05-22ubuntu
ubuntulinux-image-extra-4.10.0-1008-gcp (4.10.0-1008.8) @ xenial2026-05-22ubuntu
redhatkernel-0:2.6.18-436.el52018-12-13redhat
redhatkernel-0:2.6.32-696.20.1.el62018-01-25redhat
redhatkernel-0:3.10.0-693.5.2.el72017-10-19redhat
redhatkernel-rt-1:3.10.0-693.5.2.rt56.592.el6rt2017-10-19redhat
redhatkernel-rt-0:3.10.0-693.5.2.rt56.626.el72017-10-19redhat

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.

All Vendor Advisories

(12)

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 9× in last 7d / 34× 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. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 02:20 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-07-04 06:28 UTCEPSS rescore
  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-30 23:19 UTCEPSS rescore
  10. 2026-06-29 14:03 UTCEPSS rescore
  11. 2026-06-28 14:04 UTCEPSS rescore
  12. 2026-06-28 04:53 UTCEPSS rescore
  13. 2026-06-27 03:05 UTCEPSS rescore
  14. 2026-06-25 13:47 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-23 21:30 UTCEPSS rescore
  18. 2026-06-23 03:30 UTCOSV refresh
  19. 2026-06-21 14:54 UTCEPSS rescore
  20. 2026-06-21 14:54 UTCEPSS rescore
  21. 2026-06-21 01:57 UTCEPSS rescore
  22. 2026-06-21 01:57 UTCEPSS rescore
  23. 2026-06-19 19:23 UTCEPSS rescore
  24. 2026-06-19 19:23 UTCEPSS rescore
  25. 2026-06-18 17:50 UTCEPSS rescore
Show 40 more
  1. 2026-06-17 17:50 UTCEPSS rescore
  2. 2026-06-16 17:50 UTCEPSS rescore
  3. 2026-06-15 17:45 UTCEPSS rescore
  4. 2026-06-14 23:14 UTCEPSS rescore
  5. 2026-06-14 23:14 UTCEPSS rescore
  6. 2026-06-13 22:57 UTCEPSS rescore
  7. 2026-06-12 23:09 UTCEPSS rescore
  8. 2026-06-11 13:57 UTCEPSS rescore
  9. 2026-06-10 22:15 UTCEPSS rescore
  10. 2026-06-07 15:22 UTCEPSS rescore
  11. 2026-06-07 15:22 UTCEPSS rescore
  12. 2026-06-06 13:45 UTCEPSS rescore
  13. 2026-06-06 13:45 UTCEPSS rescore
  14. 2026-06-06 00:23 UTCOSV refresh
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-04 13:10 UTCEPSS rescore
  17. 2026-06-04 13:10 UTCEPSS rescore
  18. 2026-06-02 20:11 UTCEPSS rescore
  19. 2026-06-02 20:11 UTCEPSS rescore
  20. 2026-05-31 22:28 UTCEPSS rescore
  21. 2026-05-31 00:14 UTCEPSS rescore
  22. 2026-05-29 13:41 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-28 13:42 UTCEPSS rescore
  25. 2026-05-27 13:38 UTCEPSS rescore
  26. 2026-05-27 13:38 UTCEPSS rescore
  27. 2026-05-26 07:17 UTCEPSS rescore
  28. 2026-05-26 07:17 UTCEPSS rescore
  29. 2026-05-22 21:15 UTCEPSS rescore
  30. 2026-05-22 21:15 UTCEPSS rescore
  31. 2026-05-22 21:15 UTCEPSS rescore
  32. 2026-05-22 11:50 UTCEG score recompute
  33. 2026-05-22 11:50 UTCVendor advisory
  34. 2026-05-22 11:50 UTCGHSA enrichment
  35. 2026-05-20 22:37 UTCEPSS rescore
  36. 2026-05-20 22:37 UTCEPSS rescore
  37. 2026-05-20 11:21 UTCEPSS rescore
  38. 2026-05-20 11:21 UTCEPSS rescore
  39. 2026-05-18 21:30 UTCEPSS rescore
  40. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCCyb3rCr0wCC/cve-2017-11176
    First seen Apr 19, 2026
    Open source ↗
  • Exploit-DBEDB-45553
    First seen Oct 2, 2018

    Linux Kernel < 4.11.8 - 'mq_notify: double sock_put()' Local Privilege Escalation

    Open source ↗
  • GitHub PoClexfo/cve-2017-11176
    First seen Oct 2, 2018
    Open source ↗

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2017-11176?
CVE-2017-11176 is a high vulnerability published on July 11, 2017. The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.
When was CVE-2017-11176 disclosed?
CVE-2017-11176 was first published in the National Vulnerability Database on July 11, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-11176 actively exploited?
CVE-2017-11176 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-11176?
CVE-2017-11176 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2017-11176?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-11176, 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

Explore the affected products and dependency analysis for CVE-2017-11176

Explore →

Is Your Infrastructure Affected by CVE-2017-11176?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs