Exim Mail Transfer Agent (MTA) Improper Input Validation (CVE-2019-10149)
Severity: critical · Patch status: patched · Since 2022-01-10 · CVE-2019-10149
Improper validation of recipient address in delivermessage() function in /src/deliver.c may lead to remote command execution. CISA added CVE-2019-10149 to its Known Exploited Vulnerabilities catalog on Jan 10, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Jul 10, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch