Use-after-free vulnerability in the servePendingRequests function in WebCore in WebKit in Apple Safari 4.0 and 4.0.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted HTML document that references a zero-length .js file and the JavaScript reload function
Published Jul 9, 2009
4.3
MEDIUMCVSS 2.0
EPSS 9.07%
Description
Use-after-free vulnerability in the servePendingRequests function in WebCore in WebKit in Apple Safari 4.0 and 4.0.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted HTML document that references a zero-length .js file and the JavaScript reload function. NOTE: some of these details are obtained from third party information.
Affected products
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 3, 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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 9.07% (0.09071) | 95.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.07% (0.09071) | 94.61th | v5 (v2026.06.15) |
| Jan 25, 2026 | 24.67% (0.24669) | 95.97th | v4 (v2025.03.14) |
| May 26, 2025 | 28.63% (0.28625) | 96.25th | v4 (v2025.03.14) |
| Mar 30, 2025 | 26.69% (0.26694) | 95.91th | v4 (v2025.03.14) |
| Mar 29, 2025 | 16.40% (0.16401) | 91.49th | v4 (v2025.03.14) |
| Mar 17, 2025 | 26.69% (0.26694) | 95.93th | v4 (v2025.03.14) |
| Dec 17, 2024 | 33.12% (0.33122) | 97.05th | v3 (v2023.03.01) |
| May 8, 2024 | 22.84% (0.22838) | 96.49th | v3 (v2023.03.01) |
| Oct 12, 2023 | 22.76% (0.22764) | 95.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 27.40% (0.27395) | 96.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 37.31% (0.37312) | 97.91th | v2 (v2022.01.01) |
| Jul 18, 2022 | 37.31% (0.37312) | 97.82th | v2 (v2022.01.01) |
| Jul 17, 2022 | 34.39% (0.34394) | 97.71th | v2 (v2022.01.01) |
| Feb 4, 2022 | 37.31% (0.37312) | 97.09th | v2 (v2022.01.01) |
References (9)
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html vendor-advisoryx_refsource_SUSE
- http://marcell-dietl.de/index/adv_safari_4_x_js_reload_dos.php x_refsource_MISCExploit
- http://secunia.com/advisories/33495 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43068 third-party-advisoryx_refsource_SECUNIA
- http://trac.webkit.org/changeset/44519 x_refsource_CONFIRMVendor Advisory
- http://www.osvdb.org/55587 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/35555 vdb-entryx_refsource_BIDExploit
- http://www.vupen.com/english/advisories/2011/0212 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51533 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html | vendor-advisoryx_refsource_SUSE | |
| http://marcell-dietl.de/index/adv_safari_4_x_js_reload_dos.php | x_refsource_MISCExploit | |
| http://secunia.com/advisories/33495 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/43068 | third-party-advisoryx_refsource_SECUNIA | |
| http://trac.webkit.org/changeset/44519 | x_refsource_CONFIRMVendor Advisory | |
| http://www.osvdb.org/55587 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/35555 | vdb-entryx_refsource_BIDExploit | |
| http://www.vupen.com/english/advisories/2011/0212 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/51533 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.