VDB
ALPINE-CVE-2021-1405
ALPINE-CVE-2021-1405
PUBLISHED
CVSS 7.5 HIGH
A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.12 | clamav | 0.97.3-r0, 0.99.4-r1, 0.99.4-r0 |
| Alpine:v3.13 | clamav | 0.99.4-r1, 0, 0.100.0-r0 |
| Alpine:v3.11 | clamav | 0.99.4-r1, 0.99.4-r0, 0.99.3-r3 |
Timeline
- Apr 8, 2021 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch