CVE-2010-1939

What it is

Use-after-free vulnerability in Apple Safari 4.0.5 on Windows allows remote attackers to execute arbitrary code by using window.open to create a popup window for a crafted HTML document, and then calling the parent window's close method, which triggers improper handling of a deleted window object.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

14.7% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2010-05-13 22:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:19 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 14.7% in the next 30 days (EPSS).
• Severity: 7.6 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2010-05-13 22:30 UTC

Last modified

2026-06-16 23:19 UTC

Exploit probability

14.7% · EPSS, next 30 days

Weakness

CWE-399

Record status

Modified

Affected

• Apple Safari 4.0.5

Attack profile CVSS 2.0 · 7.6

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2010-1939.md and follow it. Check whether this project is affected by CVE-2010-1939. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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