Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.
Published: 2025-07-29
Score: 8.8 High
EPSS: 1.5% Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw in WebKitGTK causes memory corruption when an application processes maliciously crafted web content. The issue is classified under CWE‑119 and CWE‑120, indicating a buffer overflow or similar memory handling error. The resulting corruption can lead to application crashes or other unintended behavior, but the CVE description does not state that the flaw yields arbitrary code execution.

Affected Systems

Affected vendors include Apple and Red Hat. Apple products such as Safari, iOS, iPadOS, macOS Sequoia, tvOS, visionOS, and watchOS are impacted; the patch releases are Safari 18.6, iOS 18.6, iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, and watchOS 11.6. Red Hat Enterprise Linux 8 and 9, along with their extended service streams (RHEL AUS, RHEL E4S, RHEL EUS, RHEL TUS), are also affected because the CPE list references multiple RHEL releases that embed WebKitGTK.

Risk and Exploitability

The CVSS score of 8.8 indicates a high severity vulnerability. The EPSS score of 1 % suggests that real‑world exploitation is relatively uncommon, yet the vulnerability is listed in the CISA KEV catalog, confirming that active exploits have been observed. The likely attack vector is the delivery of malicious web content through a browser or an application that embeds WebKitGTK, which can remotely trigger the memory corruption.

Generated by OpenCVE AI on June 18, 2026 at 06:26 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest updates to all Apple products (Safari 18.6, iOS 18.6, iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6) or later.
  • Update Red Hat Enterprise Linux to a version that includes the WebKitGTK fix, such as the latest release in RHEL 8 or 9; monitor the vendor advisories for patch availability.
  • Until a patch is applied, mitigate by blocking or filtering known malicious WebKit payloads and limiting exposure of WebKitGTK rendering in non‑essential services; if possible, disable WebKitGTK components that are not required for functionality.

Generated by OpenCVE AI on June 18, 2026 at 06:26 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-23063 The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption.
History

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption. The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption.

Fri, 20 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 20 Mar 2026 16:30:00 +0000

Type Values Removed Values Added
References

Fri, 20 Mar 2026 15:45:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-03-20T00:00:00+00:00', 'dueDate': '2026-04-03T00:00:00+00:00'}

Fri, 20 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Title webkitgtk: Processing maliciously crafted web content may lead to memory corruption
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Els
Redhat rhel Eus
Redhat rhel Eus Long Life
Redhat rhel Tus
Weaknesses CWE-120
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_aus:8.2
cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_e4s:8.8
cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_e4s:9.2
cpe:/a:redhat:rhel_eus:9.4
cpe:/a:redhat:rhel_eus_long_life:8.4
cpe:/a:redhat:rhel_tus:8.6
cpe:/a:redhat:rhel_tus:8.8
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Els
Redhat rhel Eus
Redhat rhel Eus Long Life
Redhat rhel Tus
References
Metrics threat_severity

None

 threat_severity

Important

Thu, 19 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
References

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Thu, 31 Jul 2025 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple iphone Os
Apple safari
CPEs cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Vendors & Products Apple iphone Os
Apple safari

Thu, 31 Jul 2025 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 30 Jul 2025 23:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption. The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption.
References

Wed, 30 Jul 2025 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios
Apple ipados
Apple macos
Apple macos Sequoia
Apple tvos
Apple visionos
Apple watchos
Vendors & Products Apple
Apple ios
Apple ipados
Apple macos
Apple macos Sequoia
Apple tvos
Apple visionos
Apple watchos

Wed, 30 Jul 2025 00:15:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in watchOS 11.6, iOS 18.6 and iPadOS 18.6, tvOS 18.6, macOS Sequoia 15.6, visionOS 2.6. Processing maliciously crafted web content may lead to memory corruption. The issue was addressed with improved memory handling. This issue is fixed in watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption.

Tue, 29 Jul 2025 23:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in watchOS 11.6, iOS 18.6 and iPadOS 18.6, tvOS 18.6, macOS Sequoia 15.6, visionOS 2.6. Processing maliciously crafted web content may lead to memory corruption.
References

Subscriptions

Apple Ios Ipados Iphone Os Macos Macos Sequoia Safari Tvos Visionos Watchos
Redhat Enterprise Linux Rhel Aus Rhel E4s Rhel Els Rhel Eus Rhel Eus Long Life Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-06-30T03:16:57.786Z

Reserved: 2025-03-27T16:13:58.344Z

Link: CVE-2025-31277

cve-icon Vulnrichment

Updated: 2025-11-03T19:52:50.809Z

cve-icon NVD

Status : Analyzed

Published: 2025-07-30T00:15:30.830

Modified: 2026-06-17T09:10:13.060

Link: CVE-2025-31277

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-18T00:00:00Z

Links: CVE-2025-31277 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-18T06:30:16Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

  • CWE-120

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')