CVE-2021-33304 is a critical double free vulnerability (CWE-415) in the picoTCP and picoTCP-NG networking stacks, specifically affecting versions 1.7.0 and 2.1 respectively, within the pico_fragments_reassemble function. This flaw allows unauthenticated attackers to execute arbitrary code remotely with high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion, suggesting awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.7.0CPE matchmatch criteria | cpe:2.3:a:altran:picotcp:1.7.0:*:*:*:*:*:*:* | ||
2.1CPE matchmatch criteria | cpe:2.3:a:altran:picotcp-ng:2.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.