How severe is CVE-2013-7331?

CVE-2013-7331 has a CVSS 3.1 base score of 6.5 (MEDIUM). EPSS estimates a 50.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2013-7331: Microsoft Internet Explorer Information Disclosure

CISA Known Exploited Vulnerabilities

Microsoft Internet Explorer Information Disclosure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-25

Remediation due

2022-06-15

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2013-7331

Description

The Microsoft.XMLDOM ActiveX control in Microsoft Windows 8.1 and earlier allows remote attackers to determine the existence of local pathnames, UNC share pathnames, intranet hostnames, and intranet IP addresses by examining error codes, as demonstrated by a res:// URL, and exploited in the wild in February 2014.

Severity

CVSS 3.1 · CISA6.5 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impactpartial

Exploitation Context

as of October 15, 2026

All KEV statistics→

CISA added CVE-2013-7331 to the KEV catalog 3,010 days after its CVE record was published.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (50.2%) is higher than that of 50% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

5 Links

Vendor advisories

MS14-052

Third-party advisories

VU#539289

Vulnerability databases

1030818

Other references

Record Details

Published

2014-02-26

Last updated

2025-10-22

Assigner (CNA)

mitre

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.