CVE-2026-79619

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative operations (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject). Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to the target pool or its underlying devices is needed.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 28, 2026

Advisory Details (4)

Auto-updated Aug 26, 2026
Patch available. Sources: github_release, github_pr.
github_release Patch Available

zfs-2.2.11

Patch available: openzfs/zfs zfs-2.2.11

https://github.com/openzfs/zfs/releases/tag/zfs-2.2.11
github_release Patch Available

zfs-2.3.9

Patch available: openzfs/zfs zfs-2.3.9

https://github.com/openzfs/zfs/releases/tag/zfs-2.3.9
github_release Patch Available

zfs-2.4.4

Patch available: openzfs/zfs zfs-2.4.4

https://github.com/openzfs/zfs/releases/tag/zfs-2.4.4
github_pr

Linux: tighten secpolicy zone checks

Upstream fix in progress (PR #18959 · openzfs/zfs, state=closed)

https://github.com/openzfs/zfs/pull/18959

Vendor Advisories for CVE-2026-79619(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 19× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-30 00:33 UTCGHSA enrichment
  3. 2026-08-29 13:40 UTCGHSA enrichment
  4. 2026-08-29 02:45 UTCEG score recompute
  5. 2026-08-29 02:45 UTCGHSA enrichment
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-28 15:49 UTCGHSA enrichment
  8. 2026-08-28 07:21 UTCGHSA enrichment
  9. 2026-08-27 20:28 UTCEG score recompute
  10. 2026-08-27 20:28 UTCGHSA enrichment
  11. 2026-08-27 20:18 UTCEG score recompute
  12. 2026-08-27 20:18 UTCGHSA enrichment
  13. 2026-08-27 14:25 UTCEPSS rescore
  14. 2026-08-27 14:23 UTCGHSA enrichment
  15. 2026-08-27 03:30 UTCGHSA enrichment
  16. 2026-08-26 16:37 UTCEG score recompute
  17. 2026-08-26 15:51 UTCEG score recompute
  18. 2026-08-26 12:58 UTCEG score recompute
  19. 2026-08-26 12:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79619?
CVE-2026-79619 is a high vulnerability published on August 26, 2026. On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative…
When was CVE-2026-79619 disclosed?
CVE-2026-79619 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79619 actively exploited?
CVE-2026-79619 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-79619?
CVE-2026-79619 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-79619?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79619, 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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