CVE-2025-31277

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.

Overview

State: PUBLISHED
Assigner (CNA): apple
CVSS severity: —
CVSS score: —
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Effective score: 8.8 / 10 HIGH source: AI estimate
CWE(s): —
Reserved: 2025-03-27
Published: 2025-07-30 01:29 UTC
Last updated: 2026-04-02 20:27 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/31xxx/CVE-2025-31277.json
Linked Threat: CVE-2025-31277 — Apple Multiple Products: Apple Multiple Products Buffer Overflow Vulnerability

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: Apple Multiple Products Buffer Overflow Vulnerability
Vendor / project: Apple
Product: Multiple Products
Date added to KEV: 2026-03-20
Remediation due: 2026-04-03
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.
Ransomware campaign use: Unknown
CISA notes: 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
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

EPSS score: 0.0143 (probability of exploitation in next 30 days)
EPSS percentile: 69.65% vs all CVEs — higher = more likely to be exploited, as of 2026-06-27

AI-forensic CVSS estimate

Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.

Estimated CVSS: 8.8 / 10 HIGH AI estimate — not authoritative
Estimated at: 2026-07-14 10:35 UTC

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2025-23063
Assigner: apple
Published: Jul 29, 2025, 11:29:31 PM
Updated: Apr 2, 2026, 6:27:12 PM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.2500
Vendors: Apple
Products: iOS and iPadOS (0 <18.6)

Safari (unspecified <18.6)

visionOS (unspecified <2.6)

macOS (0 <15.6)

tvOS (unspecified <18.6)

watchOS (0 <11.6)

macOS (unspecified <15.6)

watchOS (unspecified <11.6)

iOS and iPadOS (unspecified <18.6)

visionOS (0 <2.6)

tvOS (0 <18.6)

Safari (0 <18.6)
Aliases: GHSA-vrfh-8v52-6452

ENISA 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.

EUVD references (6)

Affected products (6)

Vendor	Product	Versions	Platforms
Apple	Safari	`0` (affected)	—
Apple	iOS and iPadOS	`0` (affected)	—
Apple	macOS	`0` (affected)	—
Apple	tvOS	`0` (affected)	—
Apple	visionOS	`0` (affected)	—
Apple	watchOS	`0` (affected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

MITRE references (5) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (8)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

http://support.apple.com/en-us/124152 rapid7:support.apple.com
https://support.apple.com/en-us/124149 rapid7:support.apple.com
https://webkitgtk.org/security/WSA-2026-0001.html rapid7:webkitgtk.org
https://www.cisa.gov/known-exploited-vulnerabilities-catalog rapid7:www.cisa.gov
https://www.cve.org/CVERecord?id=CVE-2025-31277 rapid7:www.cve.org
https://attackerkb.com/topics/CVE-2025-31277 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-23063 rapid7:euvd.enisa.europa.eu
http://cwe.mitre.org/data/definitions/119.html rapid7:cwe.mitre.org

Indicators (2)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cve	`CVE-2025-31277`	no local data	2026-05-14 02:58 UTC
cwe	`CWE-119`	no local data	2026-05-14 02:58 UTC

Remediations (11)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Solana Activates Alpenglow Upgrade: What It Means for SOL

web:99bitcoins.com

The Solana price is trading at around $95, with news of the Alpenglow network upgrade going live on a community testnet

2026-05-23 14:15 UTC
ServiceNow - Now Support

web:hi.service-now.com

The Now Support portal is your launchpad to access self-help, get technical support, and manage your ServiceNow instances. Log in to manage upgrades, follow changes, view knowledge content, and more. Formerly HI portal.

2026-05-23 14:15 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-05-23 14:15 UTC
OnlyFans

web:onlyfans.com

OnlyFans is the social platform revolutionizing creator and fan connections. The site is inclusive of artists and content creators from all genres and allows them to monetize their content while developing authentic relationships with their fanbase.

2026-05-23 14:15 UTC
Google Translate

web:translate.google.com

Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

2026-05-23 14:15 UTC
Grammarly: Free AI Writing Assistance

web:www.grammarly.com

Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.

2026-05-23 14:15 UTC
This New Lightforged Vendor in WoW Sells Housing Decor You Have to Earn

web:www.icy-veins.com

Patch 12.0.7 PTR added a Showdown vendor with Lightforged weapons and housing decor - some free to buy, some locked behind achievements.

2026-05-23 14:15 UTC
Doña Maria Mole | Mexican Food Recipes | Mexico in my Kitchen

web:www.mexicoinmykitchen.com

DOÑA MARÍA® Mole is a staple found in many Mexican kitchens, and for generations has been the easy way to fix a delicious mole in a matter of minutes.

2026-05-23 14:15 UTC
Montoya Twinz - YouTube

web:www.youtube.com

New video tomorrow y'all…I have to fix all the mic audio on it 🫩 165 21 Montoya Twinz

2026-05-23 14:15 UTC
CISA Required Action

CISA KEV

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: Unknown

2026-05-14 01:13 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2025-31277.json.

{
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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
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                  },
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-31T03:56:01.249253Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
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              "content": {
                "id": "CVE-2025-31277",
                "options": [
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                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-21T04:00:59.438579Z",
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              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-03-20",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
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              {
                "cweId": "CWE-119",
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                "lang": "en",
                "type": "CWE"
              }
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        ],
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            "url": "https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31277"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
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        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "versions": [
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        },
        {
          "product": "macOS",
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              "status": "affected",
              "version": "0",
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            }
          ]
        },
        {
          "product": "tvOS",
          "vendor": "Apple",
          "versions": [
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          ]
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            }
          ]
        },
        {
          "product": "watchOS",
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        }
      ],
      "descriptions": [
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        }
      ],
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        },
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        },
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        },
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        },
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    "assignerShortName": "apple",
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    "datePublished": "2025-07-29T23:29:31.341Z",
    "dateReserved": "2025-03-27T16:13:58.344Z",
    "dateUpdated": "2026-04-02T18:27:12.615Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}