How severe is CVE-2019-8720?

CVE-2019-8720 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-8720 being actively exploited?

Yes. CVE-2019-8720 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-23, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2019-8720?

CVE-2019-8720 primarily affects Redhat Codeready Linux Builder. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-8720?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2019-8720 have an EU (EUVD) identifier?

Yes. CVE-2019-8720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-18110. It is also flagged as exploited in the EUVD (since 2022-05-23).

When was CVE-2019-8720 published?

CVE-2019-8720 was published on 2023-03-06 and last updated on 2026-06-17.

CVE-2019-8720

CVE-2019-8720 is a high-severity vulnerability in Redhat Codeready Linux Builder with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-05-23). The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-05-23)
EU (EUVD) id: EUVD-2019-18110
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-05-23)
Weakness: CWE-119
Affected product: Redhat Codeready Linux Builder
Published: 2023-03-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-8720?: 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.
How severe is CVE-2019-8720?: CVE-2019-8720 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-8720 being actively exploited?: Yes. CVE-2019-8720 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-23, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2019-8720?: CVE-2019-8720 primarily affects Redhat Codeready Linux Builder. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-8720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2019-8720 have an EU (EUVD) identifier?: Yes. CVE-2019-8720 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-18110. It is also flagged as exploited in the EUVD (since 2022-05-23).
When was CVE-2019-8720 published?: CVE-2019-8720 was published on 2023-03-06 and last updated on 2026-06-17.

References

Affected products (41)

cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:arm64:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:arm64:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:arm64:*
cpe:2.3:o:redhat:enterprise_linux_for_arm64_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*

More vulnerabilities in Redhat Codeready Linux Builder

CVE-2022-0435 — High (CVSS 8.8): A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with…
CVE-2021-3656 — High (CVSS 8.8): A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the…
CVE-2021-44142 — High (CVSS 8.8): The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple…
CVE-2020-25717 — High (CVSS 8.1): A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to…
CVE-2024-1488 — High (CVSS 8.0): A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound…
CVE-2024-0193 — High (CVSS 7.8): A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is…

All CVEs affecting Redhat Codeready Linux Builder →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →