CVE-2013-7331
Microsoft Internet Explorer Information Disclosure Vulnerability
- Medium 6.5
- Exploited: added to CISA KEV 25 May 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.
Key facts
- Published
- 26 Feb 2014
- Last changed
- 22 Oct 2025
- Assigned by
- mitre
- KEV added
- 25 May 2022
- KEV fix due
- 15 Jun 2022
- EPSS
- 50.21% likely to be exploited in the next 30 days, higher than 98.927% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: partial
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 6.5CVSS 3.1, Mediumfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 26 Feb 2014 Published
- 25 May 2022 CVE-2013-7331 added to CISA KEV
- 25 May 2022 Added to the CISA KEV catalogue