CVE-2020-7458

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-07-09 · updated 2026-06-17
Weakness: CWE-787

Description

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.

Affected products

FreeBSD: 11.4, 11.4-beta1, 12.1

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/

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