CVE-2019-11833

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
30
EG Risk 30/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

May 15, 2019

Last Modified

November 21, 2024

References (22)

15 of 22 shown · show the other 7

Vendor Advisories for CVE-2019-11833(2)

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

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-image-virtual-hwe-16.04-edge (4.15.0.55.57) @ bionic2026-05-27ubuntu
ubuntulinux-image-virtual-lts-xenial (4.4.0.159.140) @ trusty2026-05-27ubuntu
ubuntulinux-image-virtual-hwe-18.04 (5.0.0.23.80) @ bionic2026-05-27ubuntu
ubuntulinux-image-5.0.0-1011-aws (5.0.0-1011.12) @ disco2026-05-27ubuntu
ubuntulinux-image-virtual-lts-xenial (4.4.0.157.165) @ xenial2026-05-27ubuntu
ubuntulinux-image-aws-hwe (4.15.0.1047.47) @ xenial2026-05-27ubuntu
ubuntulinux-image-virtual-hwe-16.04 (4.15.0.55.76) @ xenial2026-05-27ubuntu
redhatkernel-rt-0:4.18.0-147.rt24.93.el82019-11-05redhat
redhatkernel-0:4.18.0-147.el82019-11-05redhat
redhatkernel-rt-0:3.10.0-1062.rt56.1022.el72019-08-07redhat
redhatkernel-0:3.10.0-1062.el72019-08-06redhat

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 rangeFix by version rangeDependents
linux3.16.36-1 ... 3.16.7-ckt9-3~deb8u1~bpo70+1 (64 versions)
  • every version up to 3.16.68-2: fixed in 3.16.68-2
—
linux-4.94.9.110-1~deb8u1, 4.9.144-3.1~deb8u1, 4.9.168-1~deb8u1
  • every version up to 4.9.168-1+deb9u3~deb8u1: fixed in 4.9.168-1+deb9u3~deb8u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.19.37-4: fixed in 4.19.37-4
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.19.37-4: fixed in 4.19.37-4
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.19.37-4: fixed in 4.19.37-4
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.19.37-4: fixed in 4.19.37-4
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
linux4.9.107-1 ... 4.9.88-1~bpo8+1 (48 versions)
  • every version up to 4.9.168-1+deb9u3: fixed in 4.9.168-1+deb9u3
—

Weakness Classification(1)

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

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 26× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 93 of 162 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 7 repeat rows among the latest 100 are merged into the row they repeat. The 69 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:41 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  2. 2026-10-10 19:55 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  3. 2026-10-09 20:03 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  4. 2026-10-08 16:37 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  5. 2026-10-07 23:42 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  6. 2026-10-06 15:12 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  7. 2026-10-05 17:39 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  8. 2026-10-04 23:18 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  9. 2026-10-03 14:21 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  10. 2026-09-30 14:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-09-30 10:09 UTCEG score recompute
  12. 2026-09-28 13:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-09-28 07:32 UTCOSV refresh
  14. 2026-09-27 13:40 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-09-26 15:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-09-26 00:20 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-09-24 13:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-09-23 13:43 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  19. 2026-09-21 20:27 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  20. 2026-09-20 20:10 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  21. 2026-09-18 19:22 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  22. 2026-09-17 19:22 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  23. 2026-09-16 14:04 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  24. 2026-09-15 03:05 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-09-13 16:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
Show 68 more
  1. 2026-09-12 14:56 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-09-11 14:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-09-08 21:55 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-09-08 11:58 UTCOSV refresh
  5. 2026-09-07 15:57 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  6. 2026-09-06 13:44 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  7. 2026-09-05 15:24 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-09-04 13:56 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-09-04 05:02 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-09-02 14:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-09-01 03:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-08-30 19:13 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-08-30 01:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-08-28 21:36 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-08-27 14:21 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-08-26 14:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-08-25 13:45 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-08-21 23:45 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-08-21 22:44 UTCOSV refresh
  20. 2026-08-20 22:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-08-19 17:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-08-18 13:44 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-08-17 13:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-08-16 14:52 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-08-16 02:10 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  26. 2026-08-15 01:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  27. 2026-08-13 21:56 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  28. 2026-08-12 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  29. 2026-08-09 13:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  30. 2026-08-08 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  31. 2026-08-07 16:23 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  32. 2026-08-06 13:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  33. 2026-08-06 04:51 UTCOSV refresh
  34. 2026-08-05 19:13 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  35. 2026-08-04 15:05 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  36. 2026-08-04 10:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  37. 2026-08-03 10:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  38. 2026-08-02 02:23 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  39. 2026-08-01 04:12 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  40. 2026-07-30 16:24 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  41. 2026-07-30 01:27 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  42. 2026-07-28 15:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  43. 2026-07-26 14:51 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  44. 2026-07-25 14:14 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  45. 2026-07-24 14:14 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  46. 2026-07-23 14:15 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  47. 2026-07-23 01:39 UTCEG score recompute
  48. 2026-07-22 22:19 UTCEG score recompute
  49. 2026-07-22 14:05 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  50. 2026-07-21 15:22 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  51. 2026-07-20 17:04 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  52. 2026-07-20 17:02 UTCOSV refresh
  53. 2026-07-19 14:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  54. 2026-07-19 02:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  55. 2026-07-18 10:01 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  56. 2026-07-16 16:59 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  57. 2026-07-15 16:55 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  58. 2026-07-13 22:27 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  59. 2026-07-13 06:10 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  60. 2026-07-12 05:43 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  61. 2026-07-11 08:24 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  62. 2026-07-09 19:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  63. 2026-07-08 15:11 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  64. 2026-07-07 13:42 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  65. 2026-07-06 16:25 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  66. 2026-07-06 02:20 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  67. 2026-07-05 02:27 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  68. 2026-07-04 06:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile

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Frequently asked(5)

What is CVE-2019-11833?
CVE-2019-11833 is a medium-severity vulnerability; its CVE record was published on May 15, 2019. fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.
When was the CVE record for CVE-2019-11833 published?
The CVE record for CVE-2019-11833 was published on May 15, 2019. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2019-11833 actively exploited?
CVE-2019-11833 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-11833?
CVE-2019-11833 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2019-11833?
A fix for CVE-2019-11833 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-11833 are linked in the Vendor Advisories panel on this page.

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