CVE-2020-7247 · netVigilance record NV22-0252

OpenSMTPD Remote Code Execution

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2022-04-15 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

smtp_mailaddr in smtp_session.c in OpenSMTPD, as used in OpenBSD and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session.

Who is affected

OpenBSD OpenSMTPD. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-755, CWE-78.

Timeline

2022-03-25
Added to CISA KEVExploitation in the wild confirmed by CISA
2022-04-15
CISA remediation deadlinepassed 4 years 4 months ago

Sources

NVD entry for CVE-2020-7247 nvd.nist.gov/vuln/detail/CVE-2020-7247
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2020-7247