7.2

CVE-2009-3522: avast avast_antivirus_home

CVSS: 7.2v2.0HighModified
Published 01-10-2009Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2009-3522 is a high (CVSS 7.2) vulnerability in avast avast_antivirus_home. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.5% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v2.0 (NVD)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3reference, exploit-database

Timeline

  1. 01-10-2009
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (evilfingers.com)

    Maturity: unknown

  • exploit-databasedoswindowsVerified

    Avast! 4.8.1351.0 AntiVirus - 'aswMon2.sys' Kernel Memory Corruption

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Avast2 products

1 vendor · 2 products

References

10 links