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Unrated severityNVD Advisory· Published Sep 18, 2015· Updated May 6, 2026

CVE-2015-5811

CVE-2015-5811

Description

A memory corruption vulnerability in WebKit allows remote code execution or denial of service via a crafted website.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

A memory corruption vulnerability in WebKit allows remote code execution or denial of service via a crafted website.

Vulnerability

CVE-2015-5811 is a memory corruption vulnerability in WebKit, the browser engine used in Apple iOS before 9 and iTunes before 12.3 [1][3]. A remote attacker can trigger the issue by enticing a user to visit a specially crafted website. The vulnerable versions include iOS 8.x and earlier, and iTunes 12.2 and earlier.

Exploitation

Exploitation requires the attacker to host a malicious website. The user must visit this site using a vulnerable version of iOS (pre-9) or iTunes (pre-12.3). No additional authentication or user interaction beyond normal browsing is needed. The crafted web content causes memory corruption within WebKit's processing logic.

Impact

Successful exploitation can lead to arbitrary code execution in the context of the affected application, or a denial of service via application crash. This could allow an attacker to exfiltrate data, install malware, or disrupt device functionality.

Mitigation

Apple addressed this vulnerability in iOS 9, released September 16, 2015 [1], and in iTunes 12.3, released September 16, 2015 [3]. Users should update to the latest versions of iOS and iTunes. No workarounds have been published. This CVE is not listed in CISA's Known Exploited Vulnerabilities catalog.

References
  1. About the security content of iOS 9 - Apple Support
  2. About the security content of iTunes 12.3 - Apple Support

AI Insight generated on May 23, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

5
  • Apple Inc./iTunes2 versions
    cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*range: <=12.2
    • (no CPE)range: <12.3
  • Apple Inc./Safari
    cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
    Range: <=8.0.8
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <=8.4.1
  • Apple Inc./iOSllm-fuzzy
    Range: <9

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

8

News mentions

0

No linked articles in our index yet.