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 /(.)*/
Published Apr 22, 2007
4.3
MEDIUMCVSS 2.0
EPSS 12.28%
Description
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 /(.)*/.
Affected products
No data.
- 7.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.28% (0.12278) | 96.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.28% (0.12278) | 95.66th | v5 (v2026.06.15) |
| Jan 31, 2026 | 32.09% (0.32093) | 96.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 27.68% (0.27679) | 96.03th | v4 (v2025.03.14) |
| Dec 26, 2024 | 18.33% (0.18329) | 96.19th | v3 (v2023.03.01) |
| Dec 17, 2024 | 14.25% (0.14251) | 95.69th | v3 (v2023.03.01) |
| Dec 12, 2024 | 10.67% (0.10667) | 95.32th | v3 (v2023.03.01) |
| Jun 17, 2024 | 10.18% (0.10178) | 94.96th | v3 (v2023.03.01) |
| May 10, 2024 | 6.49% (0.06494) | 93.69th | v3 (v2023.03.01) |
| Feb 24, 2024 | 3.36% (0.03365) | 91.09th | v3 (v2023.03.01) |
| Jan 17, 2024 | 2.73% (0.02732) | 89.48th | v3 (v2023.03.01) |
| Dec 10, 2023 | 2.15% (0.02155) | 88.09th | v3 (v2023.03.01) |
| Nov 2, 2023 | 1.64% (0.01639) | 86.15th | v3 (v2023.03.01) |
| Sep 24, 2023 | 1.16% (0.01162) | 83.23th | v3 (v2023.03.01) |
| Jul 12, 2023 | 1.08% (0.01083) | 82.35th | v3 (v2023.03.01) |
| Apr 28, 2023 | 1.01% (0.01006) | 81.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.31% (0.01314) | 83.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.11% (0.13105) | 95.68th | v2 (v2022.01.01) |
| Apr 1, 2022 | 13.11% (0.13105) | 95.31th | v2 (v2022.01.01) |
| Feb 4, 2022 | 13.11% (0.13105) | 90.51th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://osvdb.org/43314 vdb-entryx_refsource_OSVDBBroken Link
- http://www.securityfocus.com/archive/1/466017/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/archive/1/466043/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/archive/1/466175/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33715 vdb-entryx_refsource_XFVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/43314 | vdb-entryx_refsource_OSVDBBroken Link | |
| http://www.securityfocus.com/archive/1/466017/100/0/threaded | mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/archive/1/466043/100/0/threaded | mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/archive/1/466175/100/0/threaded | mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/33715 | vdb-entryx_refsource_XFVDB Entry |
Change history (0)
No recorded changes yet.