CVE-2019-19579

MEDIUMNVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 63% 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, nvd
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

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

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device (and assignable-add is not used), because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's "assignable-add" feature to prepare devices to be assigned to untrusted guests. Unfortunately, this is not considered a strictly required step for device assignment. The PCI passthrough documentation on the wiki describes alternate ways of preparing devices for assignment, and libvirt uses its own ways as well. Hosts where these "alternate" methods are used will still leave the system in a vulnerable state after the device comes back from a guest. An untrusted domain with access to a physical device can DMA into host memory, leading to privilege escalation. Only systems where guests are given direct access to physical devices capable of DMA (PCI pass-through) are vulnerable. Systems which do not use PCI pass-through are not vulnerable.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity68% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

December 4, 2019

Last Modified

November 21, 2024

References (16)

Affected Packages

(23 across 23 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFixed inDependents
xen—4.12.2-r0—
Alpine:v3.11(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.12(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.13(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
xen—4.13.0-r0—
Alpine:v3.8(1)
PackageVulnerable rangeFixed inDependents
xen—4.10.4-r2—
Alpine:v3.9(1)
PackageVulnerable rangeFixed inDependents
xen—4.11.3-r0—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
xen4.11.1+92-g6c33308a8d-24.11.3+24-g14b62ab3e5-1~deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
xen—4.11.3+24-g14b62ab3e5-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
xen—4.11.3+24-g14b62ab3e5-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
xen—4.11.3+24-g14b62ab3e5-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
xen—4.11.3+24-g14b62ab3e5-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
xen4.8.1-1+deb9u1 ... 4.8.5+shim4.10.2+xsa282-1+deb9u11 (13 versions)4.8.5.final+shim4.10.4-1+deb9u12—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 26× 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 121 total refreshes for this CVE.

  1. 2026-08-21 23:45 UTCEPSS rescore
  2. 2026-08-21 09:14 UTCOSV refresh
  3. 2026-08-20 22:51 UTCEPSS rescore
  4. 2026-08-19 17:00 UTCEPSS rescore
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  12. 2026-08-08 16:33 UTCEPSS rescore
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  14. 2026-08-06 13:43 UTCEPSS rescore
  15. 2026-08-05 22:21 UTCOSV refresh
  16. 2026-08-05 19:13 UTCEPSS rescore
  17. 2026-08-04 15:05 UTCEPSS rescore
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  20. 2026-07-30 01:27 UTCEPSS rescore
  21. 2026-07-28 15:32 UTCEPSS rescore
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  23. 2026-07-25 14:14 UTCEPSS rescore
  24. 2026-07-24 14:14 UTCEPSS rescore
  25. 2026-07-24 14:14 UTCEPSS rescore
Show 75 more
  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:43 UTCEG score recompute
  3. 2026-07-22 22:23 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
  6. 2026-07-21 15:22 UTCEPSS rescore
  7. 2026-07-20 17:04 UTCEPSS rescore
  8. 2026-07-20 17:04 UTCEPSS rescore
  9. 2026-07-20 00:48 UTCOSV refresh
  10. 2026-07-19 14:28 UTCEPSS rescore
  11. 2026-07-19 14:28 UTCEPSS rescore
  12. 2026-07-19 02:26 UTCEPSS rescore
  13. 2026-07-19 02:26 UTCEPSS rescore
  14. 2026-07-18 10:01 UTCEPSS rescore
  15. 2026-07-16 16:59 UTCEPSS rescore
  16. 2026-07-16 16:59 UTCEPSS rescore
  17. 2026-07-15 16:55 UTCEPSS rescore
  18. 2026-07-15 16:55 UTCEPSS rescore
  19. 2026-07-13 22:27 UTCEPSS rescore
  20. 2026-07-13 06:10 UTCEPSS rescore
  21. 2026-07-13 06:10 UTCEPSS rescore
  22. 2026-07-12 05:43 UTCEPSS rescore
  23. 2026-07-12 05:43 UTCEPSS rescore
  24. 2026-07-11 08:24 UTCEPSS rescore
  25. 2026-07-11 08:24 UTCEPSS rescore
  26. 2026-07-09 19:06 UTCEPSS rescore
  27. 2026-07-08 15:11 UTCEPSS rescore
  28. 2026-07-07 13:43 UTCEPSS rescore
  29. 2026-07-06 16:25 UTCEPSS rescore
  30. 2026-07-06 16:25 UTCEPSS rescore
  31. 2026-07-06 02:20 UTCEPSS rescore
  32. 2026-07-05 02:27 UTCEPSS rescore
  33. 2026-07-04 06:28 UTCEPSS rescore
  34. 2026-07-02 15:52 UTCOSV refresh
  35. 2026-07-01 15:03 UTCEPSS rescore
  36. 2026-07-01 15:03 UTCEPSS rescore
  37. 2026-06-30 23:20 UTCEPSS rescore
  38. 2026-06-29 14:03 UTCEPSS rescore
  39. 2026-06-28 14:04 UTCEPSS rescore
  40. 2026-06-28 04:54 UTCEPSS rescore
  41. 2026-06-28 04:54 UTCEPSS rescore
  42. 2026-06-27 03:06 UTCEPSS rescore
  43. 2026-06-25 13:47 UTCEPSS rescore
  44. 2026-06-25 13:47 UTCEPSS rescore
  45. 2026-06-24 14:03 UTCEPSS rescore
  46. 2026-06-24 14:03 UTCEPSS rescore
  47. 2026-06-23 21:31 UTCEPSS rescore
  48. 2026-06-23 21:30 UTCEPSS rescore
  49. 2026-06-22 14:23 UTCEPSS rescore
  50. 2026-06-21 14:54 UTCEPSS rescore
  51. 2026-06-21 14:54 UTCEPSS rescore
  52. 2026-06-21 01:57 UTCEPSS rescore
  53. 2026-06-21 01:57 UTCEPSS rescore
  54. 2026-06-19 19:23 UTCEPSS rescore
  55. 2026-06-19 19:23 UTCEPSS rescore
  56. 2026-06-18 17:50 UTCEPSS rescore
  57. 2026-06-17 17:50 UTCEPSS rescore
  58. 2026-06-16 17:50 UTCEPSS rescore
  59. 2026-06-15 17:45 UTCEPSS rescore
  60. 2026-06-14 23:15 UTCEPSS rescore
  61. 2026-06-14 23:15 UTCEPSS rescore
  62. 2026-06-14 13:13 UTCOSV refresh
  63. 2026-06-13 22:58 UTCEPSS rescore
  64. 2026-06-12 23:09 UTCEPSS rescore
  65. 2026-06-11 13:58 UTCEPSS rescore
  66. 2026-06-10 22:16 UTCEPSS rescore
  67. 2026-06-10 13:19 UTCEPSS rescore
  68. 2026-06-08 14:15 UTCEPSS rescore
  69. 2026-06-07 15:23 UTCEPSS rescore
  70. 2026-06-07 15:23 UTCEPSS rescore
  71. 2026-06-06 13:45 UTCEPSS rescore
  72. 2026-06-06 13:45 UTCEPSS rescore
  73. 2026-06-05 22:45 UTCEPSS rescore
  74. 2026-06-05 22:45 UTCEPSS rescore
  75. 2026-06-05 06:08 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2019-19579?
CVE-2019-19579 is a medium vulnerability published on December 4, 2019. An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device (and assignable-add is not used), because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's…
When was CVE-2019-19579 disclosed?
CVE-2019-19579 was first published in the National Vulnerability Database on December 4, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-19579 actively exploited?
CVE-2019-19579 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 62.3% of all scored CVEs.
What is the CVSS score of CVE-2019-19579?
CVE-2019-19579 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2019-19579?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-19579, 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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