Opera before 10.53 on Windows and Mac OS X does not properly handle a series of document modifications that occur asynchronously, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via JavaScript that writes <marquee> sequences in an infinite loop, leading to attempted use of uninitialized memory
Published May 5, 2010
9.3
HIGHCVSS 2.0
EPSS 6.98%
Description
Opera before 10.53 on Windows and Mac OS X does not properly handle a series of document modifications that occur asynchronously, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via JavaScript that writes <marquee> sequences in an infinite loop, leading to attempted use of uninitialized memory. NOTE: this might overlap CVE-2006-6955.
Affected products
No data.
- ≤ 10.52
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.02
- 5.10
- 5.11
- 5.12
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.1
- 6.01
- 6.1
- 6.02
- 6.03
- 6.04
- 6.05
- 6.06
- 6.11
- 6.12
- 7.0
- 7.0
- 7.0
- 7.0
- 7.01
- 7.02
- 7.03
- 7.10
- 7.10
- 7.11
- 7.11
- 7.20
- 7.20
- 7.21
- 7.22
- 7.50
- 7.50
- 7.52
- 7.53
- 7.54
- 7.54
- 7.54
- 7.60
- 8.0
- 8.0
- 8.01
- 8.50
- 8.51
- 8.52
- 8.54
- 9.0
- 9.0
- 9.01
- 9.02
- 9.10
- 9.20
- 9.20
- 9.22
- 9.24
- 9.25
- 9.26
- 9.27
- 9.50
- 9.50
- 9.50
- 9.51
- 9.52
- 9.60
- 9.61
- 9.63
- 9.64
- 10.00
- 10.00
- 10.00
- 10.00
- 10.01
- 10.10
- 10.10
- 10.50
- 10.50
- 10.50
- 10.51
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:C/I:C/A:C
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 2, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 6.98% (0.06980) | 93.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.98% (0.06980) | 93.29th | v5 (v2026.06.15) |
| Jul 29, 2025 | 11.46% (0.11455) | 93.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 14.80% (0.14796) | 94.00th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.78% (0.10777) | 95.06th | v3 (v2023.03.01) |
| Aug 7, 2024 | 12.56% (0.12560) | 95.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 17.02% (0.17016) | 95.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.54% (0.07544) | 92.83th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.54% (0.07544) | 92.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.54% (0.07544) | 81.06th | v2 (v2022.01.01) |
References (9)
- http://h.ackack.net/?p=258 x_refsource_MISCExploit
- http://my.opera.com/desktopteam/blog/2010/04/28/opera-10-53-rc1-for-windows-and-mac x_refsource_CONFIRM
- http://secunia.com/advisories/39590 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.opera.com/docs/changelogs/mac/1053/ x_refsource_CONFIRM
- http://www.opera.com/docs/changelogs/windows/1053/ x_refsource_CONFIRM
- http://www.opera.com/support/kb/view/953/ x_refsource_CONFIRMVendor Advisory
- http://www.vupen.com/english/advisories/2010/0999 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/58231 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11927 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://h.ackack.net/?p=258 | x_refsource_MISCExploit | |
| http://my.opera.com/desktopteam/blog/2010/04/28/opera-10-53-rc1-for-windows-and-mac | x_refsource_CONFIRM | |
| http://secunia.com/advisories/39590 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.opera.com/docs/changelogs/mac/1053/ | x_refsource_CONFIRM | |
| http://www.opera.com/docs/changelogs/windows/1053/ | x_refsource_CONFIRM | |
| http://www.opera.com/support/kb/view/953/ | x_refsource_CONFIRMVendor Advisory | |
| http://www.vupen.com/english/advisories/2010/0999 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/58231 | vdb-entryx_refsource_XF | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11927 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.