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CVE-2009-3522
Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before…
High7.2EPSS 0.95%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before 4.8.1356, allows local users to cause a denial of service (system crash) and possibly gain privileges via a crafted IOCTL request to IOCTL 0xb2c80018.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.95% · top 39% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
n/a
- affected n/a
References (10)
- 36507 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1022940 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20090923 Avast aswMon2.sys kernel memory corruption and Local Privilege Escalation. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 36858 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- avast-aswmon2-bo(53456) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- oval:org.mitre.oval:def:6226 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- https://www.evilfingers.com/advisory/Advisory/Avast_aswMon2.sys_kernel_memory_corruption_and_Local_Privilege_Escalation.php (opens in a new tab)x_refsource_MISCx_transferred
- ADV-2009-2761 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://www.avast.com/eng/avast-4-home_pro-revision-history.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 58402 (opens in a new tab)vdb-entryx_refsource_OSVDBx_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)
- 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://trackcve.app/cve/CVE-2009-3522)Record last updated .