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CVE-2016-4657

Out-of-bounds Write — is CVE-2016-4657real, exploitable, or a false positive? Here's the community ground truth.

High · CVSS 8.8EPSS 66.8%CISA KEVCWE-787 · Out-of-bounds Write

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: High (High 2) — CVSS base score 8.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Sam WhitakerCurated

    Apple iOS Webkit Memory Corruption Vulnerability — Apple iOS WebKit contains a memory corruption vulnerability that allows attackers to execute remote code or cause a denial-of-service (DoS) via a crafted web site. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. Listed in the CISA KEV catalog (added 2022-05-24) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~67%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Mara OkonkwoCurated

    Required action for Apple iOS: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-06-14. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Same weaknessCWE-787 · Out-of-bounds Write.