CVE-2010-1991

Exp

Microsoft Internet Explorer 6.0.2900.2180, 7, and 8.0.7600.16385 executes a mail application in situations where an IFRAME element has a mailto: URL in its SRC attribute, which allows remote attackers to cause a denial of service (excessive application launches) via an HTML document with many IFRAME elements.

Published: 2010-05-20 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-1991 is rated High Exploit Risk (66.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 13.65%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2010-1991

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2010-1991

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 14.97% 13.65% -1.32%
2 2025-03-29 13.65% 14.97% +1.32%
3 2025-03-17 — 13.65% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-1991

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2010-1991

Affected software / configurations for CVE-2010-1991

Vendor Product Version Raw CPE
microsoft ie 8.0.7600.16385 cpe:2.3:a:microsoft:ie:8.0.7600.16385:*:*:*:*:*:*:*
microsoft internet_explorer 6.0.2900.2180 cpe:2.3:a:microsoft:internet_explorer:6.0.2900.2180:*:*:*:*:*:*:*
microsoft internet_explorer 7 cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
microsoft internet_explorer 7.0 cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*

References for CVE-2010-1991

cvelogic Threat Intelligence