CVE-2013-7331The 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…
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It affects microsoft internet_explorer. Add what you run to find out whether that includes you.
CISA lists it as known exploited since May 25, 2022; federal agencies had to remediate by Jun 15, 2022. Treat that date as your deadline.
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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
- 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Weakness (CWE)
- CWE-209
- Known exploited
- Added to CISA KEV May 25, 2022; federal remediation due Jun 15, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 50.21% (percentile 99)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 22, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft internet_explorer microsoft:internet_explorer | 6; 7; 8; 9; 10; 11 | NVD |
References
- https://soroush.secproject.com/blog/2013/04/microsoft-xmldom-in-ie-can-divulge-information-of-local-drivenetwork-in-error-messages/x-refsource-misc, exploit
- http://www.securitytracker.com/id/1030818vdb-entry, x-refsource-sectrack, third-party-advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-052vendor-advisory, x-refsource-ms, patch
- http://www.kb.cert.org/vuls/id/539289third-party-advisory, x-refsource-cert-vn, us-government-resource
- http://www.fireeye.com/blog/uncategorized/2014/02/operation-snowman-deputydog-actor-compromises-us-veterans-of-foreign-wars-website.htmlx-refsource-misc, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-7331us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.