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CVE Record

CVE-2017-2491: Use after free vulnerability in the String.replace method JavaScriptCore in Apple Safari in iOS before 10.3...

Use after free vulnerability in the String.replace method JavaScriptCore in Apple Safari in iOS before 10.3 allows remote attackers to execute arbitrary code via a crafted web page, or a crafted file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2017-2491 is a Safari JavaScriptCore memory-safety flaw on iOS before 10.3. A malicious web page or crafted file could trigger arbitrary code execution. Business risk is mainly legacy or unmanaged iOS devices that still run pre-10.3 software. Exposure is most likely on obsolete, unmanaged, or unsupported iPhone and iPad devices running iOS versions earlier than 10.3. The bundle only names Safari on iOS before 10.3; it does not establish exposure for other Apple platforms. Treat this as a legacy-device remediation issue with high impact if exposed. Prioritize finding and upgrading or retiring pre-10.3 iOS devices, especially devices used for browsing or opening external files. Mitigation focus: Upgrade affected iOS devices to iOS 10.3 or later using Apple guidance.; Retire or isolate devices that cannot receive iOS 10.3 or later.; Limit untrusted web browsing and file opening on affected devices until remediated..

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Potential ATT&CK relevance

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CVE-2017-2491 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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