CVE-2019-8720

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 1.6%CVSS: 8.8Exploit: cisa kev · ssvc activeExposed services: Not assessed

A fix is available — apply it.

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

CVSS v3
8.8
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA SSVC

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
1.6%
EPSS %ILE
74th
KEV
⚠ Exploited

CISA SSVCTrack at low, Attend at medium and Act at high mission impact.

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

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 6, 2023

Last Modified

November 18, 2025

Advisory Details (3)

Auto-updated Jun 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: redhat, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720
generic

WebKitGTK and WPE WebKit Security Advisory WSA-2019-0005 - The WebKitGTK Project

https://webkitgtk.org/security/WSA-2019-0005.html
redhat Patch Available

1876611 – (CVE-2019-8720) CVE-2019-8720 webkitgtk: Multiple memory corruption issues leading to arbitrary code execution

Affected: Red Hat Enterprise Linux 7

https://bugzilla.redhat.com/show_bug.cgi?id=1876611

Vendor Advisories for CVE-2019-8720(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwebkit2gtk-driver (2.26.1-0ubuntu0.19.04.3) @ disco2026-10-05ubuntu
redhatwebkit2gtk3-0:2.28.4-1.el82020-11-04redhat
redhatwebkitgtk4-0:2.28.2-2.el72020-09-29redhat

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

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.24.2-1 ... 2.26.1-3~bpo9+2 (20 versions)
  • every version up to 2.26.1-3~deb10u1: fixed in 2.26.1-3~deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.26.0-1: fixed in 2.26.0-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.26.0-1: fixed in 2.26.0-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.26.0-1: fixed in 2.26.0-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk—
  • every version up to 2.26.0-1: fixed in 2.26.0-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 89× in last 7d / 407× 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 1,700 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(6)

What is CVE-2019-8720?
CVE-2019-8720 is a critical vulnerability published on March 6, 2023. A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.
When was CVE-2019-8720 disclosed?
CVE-2019-8720 was first published on March 6, 2023, with the most recent update on November 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-8720 actively exploited?
Yes. CISA added CVE-2019-8720 to the Known Exploited Vulnerabilities catalog on May 23, 2022, affecting WebKitGTK WebKitGTK. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2019-8720?
CVE-2019-8720 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2019-8720?
CVE-2019-8720 affects WebKitGTK WebKitGTK. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2019-8720?
A fix for CVE-2019-8720 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-8720 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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