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Advisory severityHigh7.5Red Hat Linux

High [CVE-2025-13502] Webkit: webkitgtk / wpe webkit: out-of-bounds read and integer underflow vulnerability leading to dos

This high-severity Red Hat Linux advisory covers CVE-2025-13502 affecting Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-13502 Source published Source updated

VulniPulse record published

CVE-2025-13502
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

A flaw was found in WebKitGTK and WPE WebKit. This vulnerability allows an out-of-bounds read and integer underflow, leading to a UIProcess crash (DoS) via a crafted payload to the GLib remote inspector server.

Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-125.

Affected Red Hat products: Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.

Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.

Is CVE-2025-13502 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-13502 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-13502?

Upgrade to a fixed release named by Red Hat:

  • webkitgtk4-0:2.50.3-2.el7_9
  • webkit2gtk3-0:2.50.3-1.el8_10
  • webkit2gtk3-0:2.50.3-2.el8_2
  • webkit2gtk3-0:2.50.3-2.el8_4
  • webkit2gtk3-0:2.50.3-2.el8_6
  • webkit2gtk3-0:2.50.3-2.el8_8
  • webkit2gtk3-0:2.50.3-1.el9_7
  • webkit2gtk3-0:2.50.3-1.el9_0
  • webkit2gtk3-0:2.50.3-1.el9_2
  • webkit2gtk3-0:2.50.3-1.el9_4
  • webkit2gtk3-0:2.50.3-1.el9_6
  • RHSA-2025:23583

10 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

Fixed versions
  • webkitgtk4-0:2.50.3-2.el7_9
  • webkit2gtk3-0:2.50.3-1.el8_10
  • webkit2gtk3-0:2.50.3-2.el8_2
  • webkit2gtk3-0:2.50.3-2.el8_4
  • webkit2gtk3-0:2.50.3-2.el8_6
  • webkit2gtk3-0:2.50.3-2.el8_8
  • webkit2gtk3-0:2.50.3-1.el9_7
  • webkit2gtk3-0:2.50.3-1.el9_0
  • webkit2gtk3-0:2.50.3-1.el9_2
  • webkit2gtk3-0:2.50.3-1.el9_4
  • webkit2gtk3-0:2.50.3-1.el9_6
  • RHSA-2025:23583
  • RHSA-2025:22789
  • RHSA-2025:23433
  • RHSA-2025:23434
  • RHSA-2025:23743
  • RHSA-2025:23742
  • RHSA-2025:22790
  • RHSA-2025:23452
  • RHSA-2025:23451
  • RHSA-2025:23591
  • RHSA-2025:23110

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

Mitigation

Upgrade to a fixed release: webkitgtk4-0:2.50.3-2.el7_9, webkit2gtk3-0:2.50.3-1.el8_10, webkit2gtk3-0:2.50.3-2.el8_2, webkit2gtk3-0:2.50.3-2.el8_4, webkit2gtk3-0:2.50.3-2.el8_6, webkit2gtk3-0:2.50.3-2.el8_8. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 6 days ago·verify at source

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