CVE-2025-31277
CVSS v3
8.8
HIGH
EPSS Score
0.2 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 2026-03-20
- Patch Due Date
- 2026-04-03
- Ransomware Use
- Unknown
Technical details
- CVSS v3 Vector
- 3.1
- Published
- 2025-07-30
- Last Modified
- 2026-04-03
Frequently asked questions
What is CVE-2025-31277?
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.
Is CVE-2025-31277 actively exploited?
Yes. CVE-2025-31277 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/3/2026.
What is the CVSS score for CVE-2025-31277?
CVE-2025-31277 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.
Is CVE-2025-31277 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 30 free checks/month · Free API key
Other 2025 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).