CVE-2017-2491

high-risk
Published 2017-06-27

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.

Do I need to act?

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21.7% chance of exploitation in next 30 days
EPSS score — higher than 78% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
41964
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Apple

References (8)

Third Party Advisory http://www.securityfocus.com/bid/98316
Third Party Advisory http://www.zerodayinitiative.com/advisories/ZDI-17-321
Vendor Advisory https://support.apple.com/en-us/HT207617
https://www.exploit-db.com/exploits/41964/
Third Party Advisory http://www.securityfocus.com/bid/98316
Third Party Advisory http://www.zerodayinitiative.com/advisories/ZDI-17-321
Vendor Advisory https://support.apple.com/en-us/HT207617
https://www.exploit-db.com/exploits/41964/
56
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 21/34 · High
Exposure 5/34 · Minimal