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CVE-2006-1355

18
FAUCET Score

CVE-2006-1355 describes a local privilege escalation vulnerability in avast! Antivirus 4.6.763 and earlier, where critical system files in the installation directory were assigned "BUILTIN\Everyone" permissions. This misconfiguration allowed local users to modify these files, potentially gaining elevated privileges or disabling the antivirus protection. With a CVSS score of 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C), it represents a high-severity local attack requiring low complexity and no authentication, leading to complete confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.6.763CPE matchmatch criteria
cpe:2.3:a:alwil:avast_antivirus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 40th percentile among its peer group of 3,237 CVEs.

Social Chatter

No social media mentions found for this CVE.

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.

Media 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

Remediation records are not available for this CVE.

References

forum.avast.com / index.php
secunia.com / advisories/19284
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/25336
dslreports.com / forum/remark%2C15601404~days=9999~start=20
securityfocus.com / bid/17158
vupen.com / english/advisories/2006/1011