CVE-2025-31277 kev in the critical feed json
The issue was addressed with improved memory handling.
published 2025-07-29 15 mo ago modified 2026-09-21 48 d ago also EUVD-2025-23063
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2026-03-20
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Apple Safari 18.6
- Apple iOS and iPadOS 18.6
- Apple macOS 15.6
- Apple tvOS 18.6
- Apple visionOS 2.6
- Apple watchOS 11.6
- Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.50.0-1.el7_9
- Red Hat Red Hat Enterprise Linux 8 0:2.50.0-1.el8_10
- Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.50.0-1.el8_2
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.50.0-1.el8_4
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.50.0-1.el8_4
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.50.0-1.el8_6
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.50.0-1.el8_6
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.50.0-1.el8_6
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:2.50.0-1.el8_8.1
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.50.0-1.el8_8.1
- Red Hat Red Hat Enterprise Linux 9 0:2.50.1-0.el9_6
- Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.50.0-2.el9_0
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.50.0-2.el9_2
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:2.50.0-2.el9_4
- wpewebkit Debian 14 2.50.0-1
- webkit2gtk Debian 12 2.50.1-1~deb12u1
- webkit2gtk Debian 13 2.50.1-1~deb13u1
- webkit2gtk Debian 14 2.50.0-1
debian advisories DEBIAN-CVE-2025-31277
- webkit2gtk Ubuntu 22.04 LTS 2.50.1-0ubuntu0.22.04.1
- webkit2gtk Ubuntu 24.04 LTS 2.50.1-0ubuntu0.24.04.1
- webkit2gtk Ubuntu 25.10 2.50.0-2ubuntu1
ubuntu advisories UBUNTU-CVE-2025-31277
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- webkit2gtk3 RHEL 9 2.50.1-0.el9_6
- webkit2gtk3-jsc RHEL 9 2.50.1-0.el9_6
- webkit2gtk3 RHEL 8 2.50.0-1.el8_10
- webkit2gtk3-jsc RHEL 8 2.50.0-1.el8_10
- webkitgtk4 RHEL 7 ELS 2.50.0-1.el7_9
- webkitgtk4-jsc RHEL 7 ELS 2.50.0-1.el7_9
- webkit2gtk3 RHEL 8.4 EUS_LONG_LIFE, RHEL 8.4 AUS 2.50.0-1.el8_4
- webkit2gtk3-jsc RHEL 8.4 EUS_LONG_LIFE, RHEL 8.4 AUS 2.50.0-1.el8_4
red hat advisories RHSA-2025:19352RHSA-2025:19165RHSA-2025:19157RHSA-2025:19109RHSA-2025:18097RHSA-2025:17807
- webkit2gtk3 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Desktop Applications 15 SP7 +1 more 2.52.1-150600.12.63.1
- webkit2gtk4 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Development Tools 15 SP7 +2 more 2.52.1-150600.12.63.1
- webkit2gtk3-soup2 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 +1 more 2.52.1-150600.12.63.1
- webkit2gtk3 SLES for SAP applications 16.0, SLES 16.0 2.52.1-160000.1.1
- webkit2gtk4 SLES for SAP applications 16.0, SLES 16.0 2.52.1-160000.1.1
- webkit2gtk3 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
- webkit2gtk4 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
- webkit2gtk3-soup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
suse advisories SUSE-SU-2026:1364-1SUSE-SU-2026:21180-1SUSE-SU-2026:1150-1SUSE-SU-2026:1139-1
- webkit2gtk3 openSUSE Leap 16.0 2.52.1-160000.1.1
- webkit2gtk4 openSUSE Leap 16.0 2.52.1-160000.1.1
- webkit2gtk3-soup2 openSUSE Leap 16.0 2.52.1-160000.1.1
opensuse advisories openSUSE-SU-2026:20518-1
- webkit2gtk3 AlmaLinux 8 2.50.0-1.el8_10
- webkit2gtk3-jsc AlmaLinux 8 2.50.0-1.el8_10
almalinux advisories ALSA-2025:17802
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2025-31277 updated cvss 8.8
webkitgtk: Processing maliciously crafted web content may lead to memory corruption
-
Red Hat Enterprise Linux 6 webkitgtkaffected: workaround, no fix planned “Out of support scope”
-
Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.50.0-1.el8_10, webkit2gtk3-jsc 2.50.0-1.el8_10fixed: vendor fix RHSA-2025:17802
-
Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.50.1-0.el9_6, webkit2gtk3-jsc 2.50.1-0.el9_6fixed: vendor fix RHSA-2025:18097
-
Red Hat Enterprise Linux AppStream AUS (v. 8.2) webkit2gtk3 2.50.0-1.el8_2, webkit2gtk3-jsc 2.50.0-1.el8_2fixed: vendor fix RHSA-2025:19157
-
Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3 2.50.0-1.el8_4, webkit2gtk3-jsc 2.50.0-1.el8_4fixed: vendor fix RHSA-2025:19165
-
Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3 2.50.0-1.el8_6, webkit2gtk3-jsc 2.50.0-1.el8_6 Red Hat Enterprise Linux AppStream E4S (v.8.6) webkit2gtk3 2.50.0-1.el8_6, webkit2gtk3-jsc 2.50.0-1.el8_6fixed: vendor fix RHSA-2025:19109
-
Red Hat Enterprise Linux AppStream E4S (v.8.8) webkit2gtk3 2.50.0-1.el8_8.1, webkit2gtk3-jsc 2.50.0-1.el8_8.1fixed: vendor fix RHSA-2025:17807
-
Red Hat Enterprise Linux AppStream E4S (v.9.0) webkit2gtk3 2.50.0-2.el9_0, webkit2gtk3-jsc 2.50.0-2.el9_0fixed: vendor fix RHSA-2025:17643
show 7 moreshow fewer
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Red Hat Enterprise Linux AppStream E4S (v.9.2) webkit2gtk3 2.50.0-2.el9_2, webkit2gtk3-jsc 2.50.0-2.el9_2fixed: vendor fix RHSA-2025:17743
-
Red Hat Enterprise Linux AppStream EUS (v.9.4) webkit2gtk3 2.50.0-2.el9_4, webkit2gtk3-jsc 2.50.0-2.el9_4fixed: vendor fix RHSA-2025:17741
-
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) webkit2gtk3 2.50.0-1.el8_4, webkit2gtk3-jsc 2.50.0-1.el8_4fixed: vendor fix RHSA-2025:19165
-
Red Hat Enterprise Linux AppStream TUS (v.8.6) webkit2gtk3 2.50.0-1.el8_6, webkit2gtk3-jsc 2.50.0-1.el8_6fixed: vendor fix RHSA-2025:19109
-
Red Hat Enterprise Linux AppStream TUS (v.8.8) webkit2gtk3 2.50.0-1.el8_8.1, webkit2gtk3-jsc 2.50.0-1.el8_8.1fixed: vendor fix RHSA-2025:17807
-
Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.50.0-1.el7_9, webkitgtk4-jsc 2.50.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.50.0-1.el7_9, webkitgtk4-devel 2.50.0-1.el7_9, webkitgtk4-debuginfo 2.50.0-1.el7_9, webkitgtk4-jsc-devel 2.50.0-1.el7_9fixed: vendor fix RHSA-2025:19352
-
Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtknot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Timeline
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- 7 mo ago
- Patch by
- 2026-04-03 (7 mo ago)
- Ransomware
- Not known
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Vendor, product
- Apple, Multiple Products
- CISA name
- Apple Multiple Products Buffer Overflow Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Apple Safari
- Apple iOS and iPadOS
- Apple macOS
- Apple tvOS
- Apple visionOS
- Apple watchOS
- Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
Classification
References
-
access.redhat.com
/errata/RHSA-2025:19352
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:17802
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:19157
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:19165
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:19109
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:17807
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:17643
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:17743
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:17741
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2025:18097
vendor-advisory, third-party-advisory
-
support.apple.com
/en-us/124147
release-notes, vendor-advisory
-
support.apple.com
/en-us/124149
release-notes, vendor-advisory
-
support.apple.com
/en-us/124152
release-notes, vendor-advisory
-
support.apple.com
/en-us/124153
release-notes, vendor-advisory
-
support.apple.com
/en-us/124154
release-notes, vendor-advisory
-
support.apple.com
/en-us/124155
release-notes, vendor-advisory
-
cloud.google.com
/blog/topics/threat-intelligence/darksword-ios-exploit-chain/
third-party-advisory, technical-description
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277
government-resource, us-government-resource
-
seclists.org
/fulldisclosure/2025/Aug/0
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2025/Jul/36
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2025/Jul/32
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2025/Jul/30
mailing-list, third-party-advisory
-
access.redhat.com
/security/cve/CVE-2025-31277
vdb-entry, third-party-advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=2448780
issue-tracking, third-party-advisory
-
security.access.redhat.com
/data/csaf/v2/vex/2025/cve-2025-31277.json
third-party-advisory
Sources
- CVE List CVE-2025-31277
- NVD CVE-2025-31277
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.