CVE-2007-2161
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang)...
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
Exploit likelihood
What each source reports
NVD Score used
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
- Record
CVE-2007-2161- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
- Record
CVE-2007-2161- Updated
- 2026-11-02
EUVDEUVD-2007-2156 No score
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
- Record
EUVD-2007-2156- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wr3m-ccvr-j929 No score
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang)...
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.
- Record
GHSA-wr3m-ccvr-j929- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-2161 is a medium vulnerability (CVSS 4.3) in Microsoft Internet Explorer, published April 22, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 12.3%, the 96th percentile. No source names a fixed version.