Vulnerability-Lookup

CVE-2019-8720 (GCVE-0-2019-8720)

Vulnerability from cvelistv5 – Published: 2023-03-06 00:00 – Updated: 2025-10-21 23:15

CISA Previdian

Summary

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.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-28 21:22 UTC

CWE

CWE-119
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

redhat redhat root

References

3 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1876611
https://webkitgtk.org/security/WSA-2019-0005.html
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	webkitgtk	Affected: Fixed in webkitgtk 2.26.0

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: aca4105f-70af-4749-9b5f-a0d2d54c9eab

Vulnerability ID: CVE-2019-8720

Status: Confirmed

Status Updated: 2022-05-23 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2022-05-23

Asserted: 2022-05-23

Scope

Notes: KEV entry: WebKitGTK Memory Corruption Vulnerability | Affected: WebKitGTK / WebKitGTK | Description: WebKitGTK contains a memory corruption vulnerability which can allow an attacker to perform remote code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-06-13 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2019-8720

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details

Cwes	CWE-119
Feed	CISA Known Exploited Vulnerabilities Catalog
Product	WebKitGTK
Due Date	2022-06-13
Date Added	2022-05-23
Vendorproject	WebKitGTK
Vulnerabilityname	WebKitGTK Memory Corruption Vulnerability
Knownransomwarecampaignuse	Unknown

References

CVE-2019-8720

Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: a20319d4-fcb3-4823-89b4-42b5cd6ff0c4

Vulnerability ID: CVE-2019-8720

Status: Confirmed

Status Updated: 2022-05-23 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2022-05-23

Asserted: 2022-05-23

Scope

Notes: KEVIntel entry: A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code... | Affected: Apple / webkitgtk | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details

Feed	KEVIntel (kevintel.com)
Title	A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code...
Vendor	Apple
Product	webkitgtk
Added Date	2022-05-23T00:00:00.000Z
Cvss Score	8.8
Epss Score	None
Cvss Severity	HIGH
Epss Percentile	None
Used In Malware	unknown
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	False

References

Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC

Show details on NVD website

JSON

To clipboard

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-01-05T05:56:12+00:00",
      "cve": "CVE-2019-8720",
      "id": "CVE-2019-8720",
      "initial_release_date": "2019-10-29T00:00:00+00:00",
      "product_status:fixed": "342",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "1148",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "webkitgtk: Multiple memory corruption issues leading to arbitrary code execution",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-8720.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-15T02:36:10Z",
      "cve": "CVE-2019-8720",
      "id": "CVE-2019-8720",
      "initial_release_date": "2023-02-15T04:15:20Z",
      "product_status:known_not_affected": "10",
      "product_status:recommended": "1060",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-8720",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-8720.json",
      "version": "21"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1876611\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://webkitgtk.org/security/WSA-2019-0005.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T21:24:29.610Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2019-8720\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-28T21:22:50.417013Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2022-05-23\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2022-05-23T00:00:00.000Z\", \"value\": \"CVE-2019-8720 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8720\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-01-28T21:22:27.740Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"webkitgtk\", \"versions\": [{\"status\": \"affected\", \"version\": \"Fixed in webkitgtk 2.26.0\"}]}], \"references\": [{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1876611\"}, {\"url\": \"https://webkitgtk.org/security/WSA-2019-0005.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"CWE-119\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2023-03-06T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-8720\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:15:24.508Z\", \"dateReserved\": \"2019-02-18T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2023-03-06T00:00:00.000Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
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  }
}

RHSA-2020:4451

Vulnerability from csaf_redhat - Published: 2020-11-04 01:21 - Updated: 2026-06-26 21:04

Summary

Red Hat Security Advisory: GNOME security, bug fix, and enhancement update

Severity

Moderate

Scope

57 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Fixed: 46 products Known not affected: 890 products

https://access.redhat.com/errata/RHSA-2020:4451

Open the full advisory

RHSA-2020_4035

Vulnerability from csaf_redhat - Published: 2020-09-29 20:16 - Updated: 2024-11-22 14:52

Summary

Red Hat Security Advisory: webkitgtk4 security, bug fix, and enhancement update

Severity

Moderate

Scope

104 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Fixed: 296 products

https://access.redhat.com/errata/RHSA-2020:4035

Open the full advisory

RHSA-2020_4451

Vulnerability from csaf_redhat - Published: 2020-11-04 01:21 - Updated: 2024-11-22 14:53

Summary

Red Hat Security Advisory: GNOME security, bug fix, and enhancement update

Severity

Moderate

Scope

57 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Fixed: 46 products Known not affected: 1148 products

https://access.redhat.com/errata/RHSA-2020:4451

Open the full advisory

SUSE-SU-2019:3044-1

Vulnerability from csaf_suse - Published: 2019-11-25 08:12 - Updated: 2019-11-25 08:12

Summary

Security update for webkit2gtk3

Severity

Important

Scope

42 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

8.8 (High)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Recommended: 58 products

Open the full advisory

SUSE-SU-2020:1135-1

Vulnerability from csaf_suse - Published: 2020-04-29 05:53 - Updated: 2020-04-29 05:53

Summary

Security update for webkit2gtk3

Severity

Important

Scope

30 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

8.8 (High)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Recommended: 235 products

Open the full advisory

ubuntu-cve-2019-8720

Vulnerability from osv_ubuntu

Published

2019-11-01 00:00

Modified

2026-04-22 07:38

Summary

Details

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-8720	REPORT
	https://webkitgtk.org/security/WSA-2019-0005.html	REPORT
	https://ubuntu.com/security/notices/USN-4178-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-8720	REPORT
	https://www.cisa.gov/known-exploited-vulnerabilit…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libqt5webkit5",
            "binary_version": "5.5.1+dfsg-2ubuntu1"
          },
          {
            "binary_name": "libqt5webkit5-qmlwebkitplugin",
            "binary_version": "5.5.1+dfsg-2ubuntu1"
          },
          {
            "binary_name": "qml-module-qtwebkit",
            "binary_version": "5.5.1+dfsg-2ubuntu1"
          },
          {
            "binary_name": "qtwebkit5-doc-html",
            "binary_version": "5.5.1+dfsg-2ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "qtwebkit-opensource-src",
        "purl": "pkg:deb/ubuntu/qtwebkit-opensource-src@5.5.1+dfsg-2ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.2+dfsg-1ubuntu2.1",
        "5.5.1+dfsg-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-javascriptcoregtk-4.0",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "gir1.2-webkit2-4.0",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "libjavascriptcoregtk-4.0-18",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "libjavascriptcoregtk-4.0-bin",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "libwebkit2gtk-4.0-37",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          },
          {
            "binary_name": "libwebkit2gtk-4.0-37-gtk2",
            "binary_version": "2.20.5-0ubuntu0.16.04.1"
          }
        ]
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  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2019-8720",
  "modified": "2026-04-22T07:38:54Z",
  "published": "2019-11-01T00:00:00Z",
  "references": [
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      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-8720"
    },
    {
      "type": "REPORT",
      "url": "https://webkitgtk.org/security/WSA-2019-0005.html"
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    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4178-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-8720"
    },
    {
      "type": "REPORT",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    }
  ],
  "related": [
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  "schema_version": "1.7.0",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
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  ],
  "upstream": [
    "CVE-2019-8720"
  ]
}

WID-SEC-W-2024-1479

Vulnerability from csaf_certbund - Published: 2020-09-29 22:00 - Updated: 2024-06-30 22:00

Summary

Red Hat Enterprise Linux/WebKitGTK: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Benutzerrechten

Severity

Hoch

Scope

101 vulnerabilities in this advisory, including CVE-2019-8720.

CVE-2019-8720

In Red Hat Enterprise Linux existieren mehrere Schwachstellen in WebKitGTK. Ein entfernter anonymer Angreifer kann diese Schwachstellen ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen oder Sicherheitsvorkehrungen zu umgehen. Zur erfolgreichen Ausnutzung dieser Schwachstelle muss der Angreifer den Benutzer dazu bringen, eine modifizierte URL oder Webseite in seinem Webbrowser zu öffnen.

Known affected: 3 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2019-8720 (GCVE-0-2019-8720)

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Vendor Report Successful Exploitation Confidence: 80% Source: cisa-kev

Details

References

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: kevintel

Details

References

RHSA-2020:4451

RHSA-2020_4035

RHSA-2020_4451

SUSE-SU-2019:3044-1

SUSE-SU-2020:1135-1

ubuntu-cve-2019-8720

Vulnerability from osv_ubuntu

WID-SEC-W-2024-1479

Tags

Sightings

Nomenclature

Related by attack behaviour