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CVE-2006-5270
Integer overflow in the Microsoft Malware Protection Engine (mpengine.dll), as used by Windows Live OneCare, Antigen, Defender, and…
- 9.3HighCVSS base score
- 30.5%Exploitation in 30 daysEPSS · top 1.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Integer overflow in the Microsoft Malware Protection Engine (mpengine.dll), as used by Windows Live OneCare, Antigen, Defender, and Forefront Security, allows user-assisted remote attackers to execute arbitrary code via a crafted PDF file.
Timeline
ID reserved
By mitre
- 4 months later
· 4 months later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 30.5% · top 1.7% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
References8
- MS07-010 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 22479 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 31888 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- TA07-044A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- VU#511577 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 24146 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1017636 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ADV-2007-0579 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2006-5255 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-5270)Record last updated .