CVE-2005-4504

What it is

The khtml::RenderTableSection::ensureRows function in KHTMLParser in Apple Mac OS X 10.4.3 and earlier, as used by Safari and TextEdit, allows remote attackers to cause a denial of service (memory consumption and application crash) via HTML files with a large ROWSPAN attribute in a TD tag.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

11.9% 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. 2005-12-22 23:03 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:18 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 11.9% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2005-12-22 23:03 UTC

Last modified

2026-06-16 22:18 UTC

Exploit probability

11.9% · EPSS, next 30 days

Record status

Modified

Affected

• Apple Safari 1.0
• Apple Safari 1.1
• Apple Safari 1.2
• Apple Safari 1.2.1
• Apple Safari 1.2.2
• Apple Safari 1.2.3
• Apple Safari 1.3
• Apple Safari 2.0

Attack profile CVSS 2.0 · 7.8

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Is it in your code?

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