CVE-2007-2164

Konqueror 3.5.5 release 45.4 allows remote attackers to cause a denial of service (browser crash or abort) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.

Published: 2007-04-22 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-2164 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.65%). 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-2007-2164

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 2026-05-16 0.63% 0.65% +0.02%
2 2025-12-09 0.49% 0.63% +0.14%
3 2025-03-17 — 0.49% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-2164

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-2007-2164

OS Trackers for CVE-2007-2164

vendor priority summary link
ubuntu medium CVE-2007-2164 medium priority: Ubuntu including 1 source packages (kdelibs), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): ignored 3, needs-triage 1. https://ubuntu.com/security/CVE-2007-2164

Vendor comments (NVD) for CVE-2007-2164

  • Mandriva (2007-09-18T00:00:00)

    Mandriva does not consider crashes of client applications such as Konqueror to be a security issue.

Affected software / configurations for CVE-2007-2164

Vendor Product Version Raw CPE
kde konqueror 3.5.5 cpe:2.3:a:kde:konqueror:3.5.5:*:*:*:*:*:*:*

References for CVE-2007-2164

cvelogic Threat Intelligence