What is CVE-2007-0342?

CVE-2007-0342 is a high-severity vulnerability in Apple Mac OS X, classified under CWE-399. CVSS score: 7.5/10. Published 2007-01-18.

How severe is CVE-2007-0342?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Apple Mac OS X

CVE-2007-0342

WebCore in Apple WebKit build 18794 allows remote attackers to cause a denial of service (null dereference and application crash) via a TD element with a large number in the ROWSPAN attribute, as demonstrated by a crash of OmniWeb 5.5.3 on Mac OS X 10.4.8, a different vulnerability than CVE-2006-2019.

Published 2007-01-18 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Apple Mac OS X — versions 10.4.8
Apple Safari — versions 2.0.4_419.3
Apple Webkit — versions build_18794
Omnigroup Omniweb — versions 5.5.3

Weakness classification (CWE)

References

www.securityfocus.com/bid/22059 (Exploit, vdb-entry)
security-protocols.com/sp-x41-advisory.php (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2007-0342?: CVE-2007-0342 is a high-severity vulnerability in Apple Mac OS X, classified under CWE-399. CVSS score: 7.5/10. Published 2007-01-18.
How severe is CVE-2007-0342?: High severity. CVSS v3 base score is 7.5 out of 10.