CVE-2006-1273
** DISPUTED ** Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of...
Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of service (crash) via an HTML tag with a large number of script action handlers such as onload and onmouseover, which triggers the crash when the user views the page source. NOTE: Red Hat has disputed this issue, suggesting that "It is likely the reporter was running the IE Tab extension," and Mozilla also confirmed that this is not an issue in Firefox itself
Exploit likelihood
What each source reports
NVD Score used
Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of service (crash) via an HTML tag with a large number of script action handlers such as onload and onmouseover, which triggers the crash when the user views the page source. NOTE: Red Hat has disputed this issue, suggesting that "It is likely the reporter was running the IE Tab extension," and Mozilla also confirmed that this is not an issue in Firefox itself
- Record
CVE-2006-1273- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Updated
- 2026-11-02
CVE List No score
Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of service (crash) via an HTML tag with a large number of script action handlers such as onload and onmouseover, which triggers the crash when the user views the page source. NOTE: Red Hat has disputed this issue, suggesting that "It is likely the reporter was running the IE Tab extension," and Mozilla also confirmed that this is not an issue in Firefox itself
- Record
CVE-2006-1273- Updated
- 2026-11-02
EUVDEUVD-2006-1277 No score
Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of service (crash) via an HTML tag with a large number of script action handlers such as onload and onmouseover, which triggers the crash when the user views the page source. NOTE: Red Hat has disputed this issue, suggesting that "It is likely the reporter was running the IE Tab extension," and Mozilla also confirmed that this is not an issue in Firefox itself
- Record
EUVD-2006-1277- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4g2c-wq22-f9v3 No score
** DISPUTED ** Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of...
** DISPUTED ** Mozilla Firefox 1.0.7 and 1.5.0.1 allows remote attackers to cause a denial of service (crash) via an HTML tag with a large number of script action handlers such as onload and onmouseover, which triggers the crash when the user views the page source. NOTE: Red Hat has disputed this issue, suggesting that "It is likely the reporter was running the IE Tab extension," and Mozilla also confirmed that this is not an issue in Firefox itself.
- Record
GHSA-4g2c-wq22-f9v3- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-1273 is a high vulnerability (CVSS 7.8) in Mozilla Firefox, published March 19, 2006. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 1.61%, the 76th percentile.