CVE-2025-31277 (GCVE-0-2025-31277)

Vulnerability from cvelistv5 – Published: 2025-07-29 23:29 – Updated: 2026-06-30 03:16
VLAI CISA KEVIntel
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Processing maliciously crafted web content may lead to memory corruption
  • 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')
Assigner
References
URL Tags
https://support.apple.com/en-us/124147
https://support.apple.com/en-us/124149
https://support.apple.com/en-us/124152
https://support.apple.com/en-us/124153
https://support.apple.com/en-us/124154
https://support.apple.com/en-us/124155
https://cloud.google.com/blog/topics/threat-intel… third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilit… government-resource
http://seclists.org/fulldisclosure/2025/Aug/0
http://seclists.org/fulldisclosure/2025/Jul/36
http://seclists.org/fulldisclosure/2025/Jul/32
http://seclists.org/fulldisclosure/2025/Jul/30
https://access.redhat.com/security/cve/CVE-2025-31277 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2448780 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2025:19352 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17802 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19157 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19165 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19109 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17807 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17643 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17743 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17741 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:18097 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
Apple Safari Affected: 0 , < 18.6 (custom)
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Apple iOS and iPadOS Affected: 0 , < 18.6 (custom)
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Apple macOS Affected: 0 , < 15.6 (custom)
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Apple tvOS Affected: 0 , < 18.6 (custom)
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Apple visionOS Affected: 0 , < 2.6 (custom)
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Apple watchOS Affected: 0 , < 11.6 (custom)
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Red Hat Red Hat Enterprise Linux Server (v. 7 ELS)     cpe:/o:redhat:rhel_els:7
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Red Hat Red Hat Enterprise Linux Server Optional (v. 7 ELS)     cpe:/o:redhat:rhel_els:7
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Red Hat Red Hat Enterprise Linux AppStream (v. 8)     cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v. 8.2)     cpe:/a:redhat:rhel_aus:8.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.4)     cpe:/a:redhat:rhel_aus:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)     cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.6)     cpe:/a:redhat:rhel_aus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.6)     cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.6)     cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.8)     cpe:/a:redhat:rhel_e4s:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.8)     cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.0)     cpe:/a:redhat:rhel_e4s:9.0::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.2)     cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream (v. 9)     cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2025-31277

Status: Confirmed

Status Updated: 2026-03-20 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2026-03-20
Asserted: 2026-03-20

Scope
Notes: KEV entry: Apple Multiple Products Buffer Overflow Vulnerability | Affected: Apple / Multiple Products | Description: Apple Safari, iOS, watchOS, visionOS, iPadOS, macOS, and tvOS contain a buffer overflow vulnerability that could allow the processing of maliciously crafted web content which may lead to memory corruption. | 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. | Due date: 2026-04-03 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.apple.com/en-us/124147 ; https://support.apple.com/en-us/124149 ; https://support.apple.com/en-us/124152 ; https://support.apple.com/en-us/124153 ; https://support.apple.com/en-us/124155 ; https://nvd.nist.gov/vuln/detail/CVE-2025-31277

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev


Details
Cwes CWE-119
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2026-04-03
Date Added 2026-03-20
Vendorproject Apple
Vulnerabilityname Apple Multiple Products Buffer Overflow Vulnerability
Knownransomwarecampaignuse Unknown

References

Created: 2026-03-20 16:00 UTC | Updated: 2026-03-20 16:00 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2025-31277

Status: Confirmed

Status Updated: 2026-06-01 13:30 UTC

Exploited: Yes


Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01

Scope
Notes: KEVIntel entry: 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,... | Affected: Apple / Safari, iOS and iPadOS, macOS, tvOS, visionOS, watchOS | CVSS: 8.8 (HIGH) | EPSS: 0.01428 | Used in malware: unknown | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title 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,...
Vendor Apple
Product Safari, iOS and iPadOS, macOS, tvOS, visionOS, watchOS
Added Date 2026-06-01T13:30:35.304Z
Cvss Score 8.8
Epss Score 0.01428
Cvss Severity HIGH
Epss Percentile 0.69501
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False

References

Created: 2026-06-23 14:03 UTC | Updated: 2026-06-23 14:03 UTC
Show details on NVD website

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{\"cpes\": [\"cpe:/o:redhat:enterprise_linux:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 6\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:7\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 7\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-03-18T20:06:11.785Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-03-18T00:00:00.000Z\", \"value\": \"Made public.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"RHSA-2025:19352: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:17802: Red Hat Enterprise Linux AppStream (v. 8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:19157: Red Hat Enterprise Linux AppStream AUS (v. 8.2)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:19165: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:19109: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:17807: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:17643: Red Hat Enterprise Linux AppStream E4S (v.9.0)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:17743: Red Hat Enterprise Linux AppStream E4S (v.9.2)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:17741: Red Hat Enterprise Linux AppStream EUS (v.9.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2025:18097: Red Hat Enterprise Linux AppStream (v. 9)\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-03-18T00:00:00.000Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2025-31277\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2448780\", \"name\": \"RHBZ#2448780\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-31277.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:19352\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:17802\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:19157\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:19165\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:19109\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:17807\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:17643\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:17743\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:17741\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:18097\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Do not process or load untrusted web content with WebKitGTK.\\n\\nIn Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp.\\n\\nThis vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction.\\n\\nTo mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them will also remove GNOME and other packages, breaking functionality. However, the server can still be used via the terminal interface.\\n\\nAdditionally, WebKitGTK3 is not required by any package. Therefore, it can be removed without consequences or break of functionality.\"}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-06-30T03:16:57.786Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-31277\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-21T04:00:59.438579Z\"}}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-31277\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-21T04:00:59.438579Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2026-03-20\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277\"}}}], \"references\": [{\"url\": \"https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-30T13:27:56.030Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Apple\", \"product\": \"Safari\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"18.6\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"18.6\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"15.6\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"tvOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"18.6\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"visionOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.6\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"watchOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"11.6\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://support.apple.com/en-us/124147\"}, {\"url\": \"https://support.apple.com/en-us/124149\"}, {\"url\": \"https://support.apple.com/en-us/124152\"}, {\"url\": \"https://support.apple.com/en-us/124153\"}, {\"url\": \"https://support.apple.com/en-us/124154\"}, {\"url\": \"https://support.apple.com/en-us/124155\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"Processing maliciously crafted web content may lead to memory corruption\"}]}], \"providerMetadata\": {\"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\", \"dateUpdated\": \"2026-04-02T18:27:12.615Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-31277\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-30T03:16:57.786Z\", \"dateReserved\": \"2025-03-27T16:13:58.344Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2025-07-29T23:29:31.341Z\", \"assignerShortName\": \"apple\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.

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Detection rules are retrieved from Rulezet.

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