CVE-2009-3933

WebKit before r50173, as used in Google Chrome before 3.0.195.32, allows remote attackers to cause a denial of service (CPU consumption) via a web page that calls the JavaScript setInterval method, which triggers an incompatibility between the WTF::currentTime and base::Time functions.

Published: 2009-11-12 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3933 is rated Moderate Risk (51/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.10%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-3933

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.17% 3.10% +0.94%
2 2025-03-17 5.17% 2.17% -3.00%
3 2025-03-11 — 5.17% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3933

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-3933

OS Trackers for CVE-2009-3933

vendor priority summary link
ubuntu low CVE-2009-3933 low priority: Ubuntu including 4 source packages (kde4libs, kdelibs, qt4-x11, webkit), 24 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): not-affected 21, DNE 2, ignored 1. https://ubuntu.com/security/CVE-2009-3933

Affected software / configurations for CVE-2009-3933

Vendor Product Version Raw CPE
webkit webkit <= r50173 cpe:2.3:a:webkit:webkit:*:*:*:*:*:*:*:*

References for CVE-2009-3933

cvelogic Threat Intelligence