Is CVE-2013-7331 in the CISA KEV catalog?

Yes. CVE-2013-7331 is on the CISA Known Exploited Vulnerabilities list, added 2022-05-25.

What is the CVSS severity of CVE-2013-7331?

CVE-2013-7331 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2013-7331?

CVE-2013-7331 has an EPSS score of 58.02% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2013-7331?

No published fix for CVE-2013-7331 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-06-15. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2013-7331

MEDIUMCISA KEVEPSS 99th pctl

6.5

CVSS v3

NVD

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.

CWE-209

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-06-15

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

58.02%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Internet Explorer Information Disclosure Vulnerability

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.

Apply updates per vendor instructions.

Remediation due: 2022-06-15

References

Patch1

docs.microsoft.com

Exploit1

soroush.secproject.com

Third-Party Advisory3

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-209 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-29059	High	7.5	99%	KEV	-
CVE-2021-22145	Medium	6.5	76%	-	-
CVE-2010-3332	Medium	6.4	67%	-	-
CVE-2025-62168	Critical	10.0	63%	-	Fix
CVE-2025-47813	Medium	4.3	56%	KEV	Fix
CVE-2021-30357	Medium	5.3	23%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.