aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not…
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1) 0xb2d6000c and (2) 0xb2d60034, which allows local users to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption, a different vulnerability than CVE-2008-1625.
Why it matters now
EPSS 0.00781 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 29
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avast:avast_antivirus_home:*:*:windows:*:*:*:*:* | up to 4.8.1351 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.7.827:*:windows:*:*:*:*:* | 4.7.827 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.7.844:*:windows:*:*:*:*:* | 4.7.844 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.7.869:*:windows:*:*:*:*:* | 4.7.869 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.7.1043:*:windows:*:*:*:*:* | 4.7.1043 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.7.1098:*:windows:*:*:*:*:* | 4.7.1098 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1169:*:windows:*:*:*:*:* | 4.8.1169 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1195:*:windows:*:*:*:*:* | 4.8.1195 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1201:*:windows:*:*:*:*:* | 4.8.1201 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1227:*:windows:*:*:*:*:* | 4.8.1227 | Vulnerable | Avast |
- cpe:2.3:a:avast:avast_antivirus_home:*:*:windows:*:*:*:*:* Versions up to 4.8.1351 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.7.827:*:windows:*:*:*:*:* Versions 4.7.827 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.7.844:*:windows:*:*:*:*:* Versions 4.7.844 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.7.869:*:windows:*:*:*:*:* Versions 4.7.869 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.7.1043:*:windows:*:*:*:*:* Versions 4.7.1043 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.7.1098:*:windows:*:*:*:*:* Versions 4.7.1098 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1169:*:windows:*:*:*:*:* Versions 4.8.1169 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1195:*:windows:*:*:*:*:* Versions 4.8.1195 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1201:*:windows:*:*:*:*:* Versions 4.8.1201 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1227:*:windows:*:*:*:*:* Versions 4.8.1227 Vulnerable ·Avast
Show 19 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1229:*:windows:*:*:*:*:* | 4.8.1229 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1282:*:windows:*:*:*:*:* | 4.8.1282 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1290:*:windows:*:*:*:*:* | 4.8.1290 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1296:*:windows:*:*:*:*:* | 4.8.1296 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_home:4.8.1335:*:windows:*:*:*:*:* | 4.8.1335 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:*:*:windows:*:*:*:*:* | up to 4.8.1351 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.7.827:*:windows:*:*:*:*:* | 4.7.827 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.7.844:*:windows:*:*:*:*:* | 4.7.844 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.7.1043:*:windows:*:*:*:*:* | 4.7.1043 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.7.1098:*:windows:*:*:*:*:* | 4.7.1098 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1169:*:windows:*:*:*:*:* | 4.8.1169 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1195:*:windows:*:*:*:*:* | 4.8.1195 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1201:*:windows:*:*:*:*:* | 4.8.1201 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1227:*:windows:*:*:*:*:* | 4.8.1227 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1229:*:windows:*:*:*:*:* | 4.8.1229 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1282:*:windows:*:*:*:*:* | 4.8.1282 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1290:*:windows:*:*:*:*:* | 4.8.1290 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1296:*:windows:*:*:*:*:* | 4.8.1296 | Vulnerable | Avast |
| cpe:2.3:a:avast:avast_antivirus_professional:4.8.1335:*:windows:*:*:*:*:* | 4.8.1335 | Vulnerable | Avast |
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1229:*:windows:*:*:*:*:* Versions 4.8.1229 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1282:*:windows:*:*:*:*:* Versions 4.8.1282 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1290:*:windows:*:*:*:*:* Versions 4.8.1290 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1296:*:windows:*:*:*:*:* Versions 4.8.1296 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_home:4.8.1335:*:windows:*:*:*:*:* Versions 4.8.1335 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:*:*:windows:*:*:*:*:* Versions up to 4.8.1351 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.7.827:*:windows:*:*:*:*:* Versions 4.7.827 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.7.844:*:windows:*:*:*:*:* Versions 4.7.844 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.7.1043:*:windows:*:*:*:*:* Versions 4.7.1043 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.7.1098:*:windows:*:*:*:*:* Versions 4.7.1098 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1169:*:windows:*:*:*:*:* Versions 4.8.1169 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1195:*:windows:*:*:*:*:* Versions 4.8.1195 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1201:*:windows:*:*:*:*:* Versions 4.8.1201 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1227:*:windows:*:*:*:*:* Versions 4.8.1227 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1229:*:windows:*:*:*:*:* Versions 4.8.1229 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1282:*:windows:*:*:*:*:* Versions 4.8.1282 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1290:*:windows:*:*:*:*:* Versions 4.8.1290 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1296:*:windows:*:*:*:*:* Versions 4.8.1296 Vulnerable ·Avast
- cpe:2.3:a:avast:avast_antivirus_professional:4.8.1335:*:windows:*:*:*:*:* Versions 4.8.1335 Vulnerable ·Avast
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-3523
- 2026-10-03 Alias added: GHSA-65m7-qc75-24vh
References
More Avast Antivirus Home vulnerabilities
- TI-2007-01612 unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote… CVSS 2.0HIGH 7.8
- TI-2009-03840 Heap-based buffer overflow in aswRdr.sys (aka the TDI RDR driver) in avast! Home and… CVSS 2.0HIGH 7.2
- TI-2010-00673 Aavmker4.sys in avast! 4.8 through 4.8.1368.0 and 5.0 before 5.0.418.0 running on Windows… CVSS 2.0HIGH 7.2
- TI-2009-03360 Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows… CVSS 2.0HIGH 7.2
- TI-2007-05973 Unspecified vulnerability in avast! 4 Home and Professional Editions before 4.7.1098… CVSS 2.0MEDIUM 6.8
- TI-2009-03362 Unspecified vulnerability in ashWsFtr.dll in avast! Home and Professional for Windows… CVSS 2.0HIGH 7.2
Sources
- CVE-2009-3523 · CVE Program
- CVE-2009-3523 · NVD
- FIRST EPSS
- GHSA-65m7-qc75-24vh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences