CVE-2015-8374

MEDIUMNVD 4.04.0—
EchelonGraph scoreMEDIUM confidence

Score 4.0 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 4.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.0Exploit: None knownExposed: 0

A fix is available — apply it.

fs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action.

CVSS v3
4.0
EG Score
4.0(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: 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
Severity40% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

December 28, 2015

Last Modified

May 6, 2026

References (42)

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-extra-3.19.0-49-generic (3.19.0-49.55~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-3.2.0-1476-omap4 (3.2.0-1476.99) @ precise2026-05-22ubuntu
ubuntulinux-image-3.2.0-98-powerpc64-smp (3.2.0-98.138) @ precise2026-05-22ubuntu
ubuntulinux-image-4.2.0-1022-raspi2 (4.2.0-1022.29) @ wily2026-05-22ubuntu
ubuntulinux-image-3.13.0-77-generic-lpae (3.13.0-77.121~precise1) @ precise2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-77-generic (3.13.0-77.121) @ trusty2026-05-22ubuntu
ubuntulinux-image-4.2.0-27-generic (4.2.0-27.32) @ wily2026-05-22ubuntu
ubuntulinux-image-extra-4.2.0-27-generic (4.2.0-27.32~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.16.0-60-generic (3.16.0-60.80~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-3.19.0-49-powerpc64-smp (3.19.0-49.55) @ vivid2026-05-22ubuntu
redhatkernel-rt-0:3.10.0-514.rt56.420.el72016-11-03redhat
redhatkernel-0:3.10.0-514.el72016-11-03redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.6-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.6-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.6-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.2.6-2—

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 6× in last 7d / 27× 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 127 total refreshes for this CVE.

  1. 2026-08-20 22:50 UTCEPSS rescore
  2. 2026-08-19 16:59 UTCEPSS rescore
  3. 2026-08-18 13:43 UTCEPSS rescore
  4. 2026-08-16 14:51 UTCEPSS rescore
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  7. 2026-08-14 14:54 UTCOSV refresh
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  1. 2026-07-23 01:20 UTCEG score recompute
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  3. 2026-07-22 21:59 UTCEG score recompute
  4. 2026-07-22 14:04 UTCEPSS rescore
  5. 2026-07-21 15:21 UTCEPSS rescore
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  7. 2026-07-20 17:03 UTCEPSS rescore
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  17. 2026-07-13 22:26 UTCEPSS rescore
  18. 2026-07-13 22:26 UTCEPSS rescore
  19. 2026-07-12 12:38 UTCOSV refresh
  20. 2026-07-12 05:42 UTCEPSS rescore
  21. 2026-07-11 08:23 UTCEPSS rescore
  22. 2026-07-09 19:05 UTCEPSS rescore
  23. 2026-07-09 19:05 UTCEPSS rescore
  24. 2026-07-08 15:10 UTCEPSS rescore
  25. 2026-07-07 13:42 UTCEPSS rescore
  26. 2026-07-07 13:42 UTCEPSS rescore
  27. 2026-07-06 16:24 UTCEPSS rescore
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  43. 2026-06-23 21:30 UTCEPSS rescore
  44. 2026-06-23 18:20 UTCOSV refresh
  45. 2026-06-22 14:23 UTCEPSS rescore
  46. 2026-06-22 14:23 UTCEPSS rescore
  47. 2026-06-21 14:54 UTCEPSS rescore
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  49. 2026-06-21 01:57 UTCEPSS rescore
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  51. 2026-06-19 19:23 UTCEPSS rescore
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  69. 2026-06-07 01:29 UTCOSV refresh
  70. 2026-06-06 13:45 UTCEPSS rescore
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  75. 2026-06-04 13:10 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-8374?
CVE-2015-8374 is a medium vulnerability published on December 28, 2015. fs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action.
When was CVE-2015-8374 disclosed?
CVE-2015-8374 was first published in the National Vulnerability Database on December 28, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8374 actively exploited?
CVE-2015-8374 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 59.1% of all scored CVEs.
What is the CVSS score of CVE-2015-8374?
CVE-2015-8374 has a CVSS v3 base score of 4.0 (NVD).
How do I remediate CVE-2015-8374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8374, 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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