What is CVE-2007-4773?

CVE-2007-4773 is a critical-severity vulnerability in Systrace Project, classified under Double Free. CVSS score: 9.8/10. Published 2020-01-15.

How severe is CVE-2007-4773?

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

Double Free in Systrace Project

CVE-2007-4773

Systrace before 1.6.0 has insufficient escape policy enforcement.

Vulnerability class: Double Free

Published 2020-01-15 · last modified 2026-06-16.

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.

EPSS exploit prediction

EPSS: 0.017 (76.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Systrace Project

Weakness classification (CWE)

CWE-415 — Double Free

References

www.citi.umich.edu/u/provos/systrace/ (Third Party Advisory)
taviso.decsystem.org/research.html (Third Party Advisory)
taviso.decsystem.org/research.t2t (Third Party Advisory)
www.provos.org/index.php (Third Party Advisory)

Frequently asked questions

What is CVE-2007-4773?: CVE-2007-4773 is a critical-severity vulnerability in Systrace Project, classified under Double Free. CVSS score: 9.8/10. Published 2020-01-15.
How severe is CVE-2007-4773?: Critical severity. CVSS v3 base score is 9.8 out of 10.