CVE-2014-0322Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via vectors involving crafted JavaScript code, CMarkup, and the onpropertychange…
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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 4, 2022; federal agencies had to remediate by May 25, 2022. Treat that date as your deadline.
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Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via vectors involving crafted JavaScript code, CMarkup, and the onpropertychange attribute of a script element, as exploited in the wild in January and February 2014.
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV May 4, 2022; federal remediation due May 25, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 85.12% (percentile 100)
- Assigned by
- microsoft
- 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 | 9; 10 | NVD |
References
- http://www.fireeye.com/blog/technical/cyber-exploits/2014/02/new-ie-zero-day-found-in-watering-hole-attack-2.htmlx-refsource-misc, broken-link
- http://www.osvdb.org/103354vdb-entry, x-refsource-osvdb, broken-link
- http://www.exploit-db.com/exploits/32851exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://technet.microsoft.com/security/advisory/2934088x-refsource-confirm, patch, vendor-advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-012vendor-advisory, x-refsource-ms, patch
- http://www.kb.cert.org/vuls/id/732479third-party-advisory, x-refsource-cert-vn, us-government-resource
- http://twitter.com/nanoc0re/statuses/434251658344673281x-refsource-misc, press/media-coverage
- http://community.websense.com/blogs/securitylabs/archive/2014/02/13/msie-0-day-exploit-cve-2014-0322-possibly-targeting-french-aerospace-organization.aspxx-refsource-misc, broken-link, permissions-required
- https://www.dropbox.com/s/pyxjgycmudirbqe/CVE-2014-0322.zipx-refsource-misc, broken-link, exploit
- http://www.fireeye.com/blog/uncategorized/2014/02/operation-snowman-deputydog-actor-compromises-us-veterans-of-foreign-wars-website.htmlx-refsource-misc, broken-link
- http://www.exploit-db.com/exploits/32904exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0322us-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.