CVE-2009-4049 describes a heap-based buffer overflow in the aswRdr.sys driver of Avast! Home and Professional Antivirus versions 4.8.1356.0. This vulnerability allows a local attacker to trigger a denial of service through memory corruption or potentially escalate privileges by providing specially crafted arguments to IOCTL 0x80002024. With a CVSS score of 7.2, it represents a high-severity local attack requiring low complexity, with potential for complete confidentiality, integrity, and availability impact. While not listed on the KEV catalog or Hot List, an exploit for privilege escalation is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.8.1356.0CPE matchmatch criteria | cpe:2.3:a:avast:avast_antivirus_home:4.8.1356.0:*:*:*:*:*:*:* | ||
4.8.1356.0CPE matchmatch criteria | cpe:2.3:a:avast:avast_antivirus_professional:4.8.1356.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.