CVE-2020-7458

9.8 criticalEPSS 1.9%

Critical (9.8) in freebsd freebsd. EPSS 1.9% chance of exploitation in the next 30 days.

In FreeBSD 12.1-STABLE before r362281, 11.4-STABLE before r362281, and 11.4-RELEASE before p1, long values in the user-controlled PATH environment variable cause posix_spawnp to write beyond the end of the heap allocated stack possibly leading to arbitrary code execution.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2020-07-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

freebsd:freebsd

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.asc
https://security.netapp.com/advisory/ntap-20200724-0002/
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:18.posix_spawnp.asc
https://security.netapp.com/advisory/ntap-20200724-0002/

Check your stack JSON