CVE-2017-2491

8.8 highEPSS 8.0%

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.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 8.0% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2017-06-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:iphone_os

References

http://www.securityfocus.com/bid/98316
http://www.zerodayinitiative.com/advisories/ZDI-17-321
https://support.apple.com/en-us/HT207617
https://www.exploit-db.com/exploits/41964/
http://www.securityfocus.com/bid/98316

Check your stack JSON