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

Vulnerability from cvelistv5 – Published: 2023-03-06 00:00 – Updated: 2025-10-21 23:15
VLAI 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
References
Impacted products
Vendor Product Version
n/a webkitgtk Affected: Fixed in webkitgtk 2.26.0
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 603198e1-d132-4317-9021-10875b2b9d8b

Vulnerability ID: CVE-2019-8720

Status: Confirmed

Status Updated: 2022-05-23 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2022-05-23
Asserted: 2022-05-23
Scope
Notes: 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
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 4c326f3f-4b37-4953-9e72-6b408d68a38a

Vulnerability ID: CVE-2019-8720

Status: Confirmed

Status Updated: 2022-05-23 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2022-05-23
Asserted: 2022-05-23
Scope
Notes: 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) | EPSS: 0.01556 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code...
Cve Id CVE-2019-8720
Vendor Apple
Ghsa Id None
Product webkitgtk
Added Date 2022-05-23T00:00:00.000Z
Cvss Score 8.8
Epss Score 0.01556
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.74263
Used In Malware unknown
Vulnerability Id CVE-2019-8720
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website
To clipboard 

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  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.