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CVE-2013-7331

Microsoft Internet Explorer Information Disclosure

6.5 MEDIUMActively exploited (CISA KEV)Public exploitEPSS 50.2%
  1. Published26 Feb 2014
  2. Added to CISA KEV25 May 2022
  3. Remediation due15 Jun 2022
Actively exploited (CISA KEV)

An information disclosure vulnerability exists in Internet Explorer which allows resources loaded into memory to be queried. This vulnerability could allow an attacker to detect anti-malware applications.

Added to KEV: 25 May 2022Federal remediation due: 15 Jun 2022

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

Microsoft Internet Explorer10 · 11 · 6 · 7

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2013-7331 being actively exploited?

Yes. CVE-2013-7331 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 May 2022.

How severe is CVE-2013-7331?

CVE-2013-7331 has a CVSS 3.1 base score of 6.5, rated medium. EPSS estimates a 50.2% probability of exploitation.

Which products are affected by CVE-2013-7331?

Affected products include Microsoft Internet Explorer.

How do I fix CVE-2013-7331?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2013-7331 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.