What’s Vulnerable › Vulnerabilities

CVE-2017-2491

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-06-27 · updated 2026-06-17
• Weakness: CWE-416

Description

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.

Affected products

• Apple Iphone Os: through 10.2.1

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

Get alerted when CVE-2017-2491 or the next vulnerability affects your stack