CVE-2021-33603 describes a Denial-of-Service (DoS) vulnerability in the AVPACK module of F-Secure Atlant, affecting certain F-Secure products on Apple and Microsoft platforms. An unauthenticated remote attacker can trigger this vulnerability by submitting a fuzzed file, causing the Anti-Virus engine to crash. While rated Medium severity (CVSS 6.5) due to its remote attack vector and high impact on availability, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:f-secure:atlant:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:f-secure:internet_gatekeeper:-:*:*:*:*:-:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:f-secure:linux_security:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.