Link following in Avast Free Antivirus
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-59 and the CVSS impact.
Summary
Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Avast | Free Antivirus | 23.11.6090 Build 23.11.8365.809 | — | No fix listed | CNA |
- Free Antivirus VendorAvast Affected 23.11.6090 Build 23.11.8365.809 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avast:free_antivirus:23.11.6090:build_23.11.8365.809:*:*:*:*:*:* | 23.11.6090 build_23.11.8365.809 | Vulnerable | Avast |
- cpe:2.3:a:avast:free_antivirus:23.11.6090:build_23.11.8365.809:*:*:*:*:*:* Versions 23.11.6090 build_23.11.8365.809 Vulnerable ·Avast
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-7228
- 2026-10-03 Alias added: GHSA-3hqr-6848-jx5j
References
Advisory 1
More Avast Free Antivirus vulnerabilities
- TI-2024-06698 Link following in Avast Free Antivirus CVSS 3.1HIGH 7.8
- TI-2024-06697 Link following in Avast Free Antivirus CVSS 3.1HIGH 7.8
- TI-2024-06692 Link following in Avast Free Antivirus CVSS 3.1HIGH 7.8
- TI-2018-09022 Avast Free Antivirus prior to 19.1.2360 stores user credentials in memory upon login… CVSS 3.0HIGH 7.8
- TI-2017-03573 Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3… CVSS 3.0MEDIUM 6.7
- TI-2020-10717 An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2024-7228 · CVE Program
- CVE-2024-7228 · NVD
- FIRST EPSS
- GHSA-3hqr-6848-jx5j · 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