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

Vulnerability from cvelistv5 – Published: 2025-07-29 23:29 – Updated: 2026-04-02 18:27
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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
Assigner
References
Impacted products
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 53903deb-ca5c-45b4-abfd-7aa40ea28763

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
KEV entry ID: b25c662c-0db0-4b33-b890-bc2f49f8a9db

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 0.69516
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://seclists.org/fulldisclosure/2025/Aug/0\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Jul/36\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Jul/32\"}, {\"url\": \"http://seclists.org/fulldisclosure/2025/Jul/30\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T19:52:50.809Z\"}}, {\"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\": \"2026-04-02T18:27:12.615Z\", \"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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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.