CVE-1999-0827
CVE-1999-0827 is a low-severity vulnerability in Microsoft Ie with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Low (CVSS 2.0 base score 2.6)
- EPSS exploit prediction: 5% (91st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Ie
- Published:
- Last modified:
Description
By default, Internet Explorer 5.0 and other versions enables the "Navigate sub-frames across different domains" option, which allows frame spoofing.
Frequently asked questions
- What is CVE-1999-0827?
- By default, Internet Explorer 5.0 and other versions enables the "Navigate sub-frames across different domains" option, which allows frame spoofing.
- How severe is CVE-1999-0827?
- CVE-1999-0827 has a CVSS 2.0 base score of 2.6, rated low severity.
- Is CVE-1999-0827 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-1999-0827?
- CVE-1999-0827 primarily affects Microsoft Ie. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-1999-0827?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-1999-0827 published?
- CVE-1999-0827 was published on 1999-11-01 and last updated on 2026-06-16.
References
Affected products (11)
- cpe:2.3:a:microsoft:ie:4.0:a_mac_os:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:3.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:3.2:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:4.0.1:sp2:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:4.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:4.5:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:netscape:navigator:*:*:*:*:*:*:*:*
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