What is CVE-2021-33304?

CVE-2021-33304 is a critical-severity vulnerability in Altran Picotcp, classified under Double Free. CVSS score: 9.8/10. Published 2023-02-15.

How severe is CVE-2021-33304?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-33304 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Double Free in Altran Picotcp

CVE-2021-33304

Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in modules/pico_fragments.c in function pico_fragments_reassemble, allows attackers to execute arbitrary code.

Vulnerability class: Double Free

EPSS: 0.008 (53.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Altran Picotcp — versions 1.7.0
Altran Picotcp-ng — versions 2.1
N/a — versions n/a

Weakness classification (CWE)

CWE-415 — Double Free

Public proof-of-concept exploits

DiRaltvein/memory-corruption-examples

References

cve@mitre.org (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33304?: CVE-2021-33304 is a critical-severity vulnerability in Altran Picotcp, classified under Double Free. CVSS score: 9.8/10. Published 2023-02-15.
How severe is CVE-2021-33304?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-33304 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.