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CVE-2015-2403

28
FAUCET Score

CVE-2015-2403 describes a critical memory corruption vulnerability in Microsoft Internet Explorer 8. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service by enticing a user to visit a specially crafted website. With a CVSS score of 9.3, it poses a severe risk due to its network-based attack vector, low authentication requirements, and complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no public exploit code available in common databases like Metasploit or ExploitDB, and it has not been added to CISA's KEV catalog. Community discussion and media coverage for this vulnerability are also notably absent.

Impacted Technologies

VendorProductVersion(s)CPE
8CPE matchmatch criteria
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
13.02%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1302 is in the 78th percentile among its peer group of 8,918 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2015/ms15-065
securitytracker.com / id/1032894