CVE-2021-1252 is a denial-of-service vulnerability in the Excel XLM macro parsing module of Clam AntiVirus (ClamAV) versions 0.103.0 and 0.103.1. An unauthenticated, remote attacker can exploit this by sending a specially crafted Excel file, leading to an infinite loop and causing the ClamAV scanning process to hang. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.103.0CPE matchmatch criteria | cpe:2.3:a:clamav:clamav:0.103.0:*:*:*:*:*:*:* | ||
0.103.1CPE matchmatch criteria | cpe:2.3:a:clamav:clamav:0.103.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.