CVE-2019-13917

high-risk
Published 2019-07-25

Exim 4.85 through 4.92 (fixed in 4.92.1) allows remote code execution as root in some unusual configurations that use the ${sort } expansion for items that can be controlled by an attacker (e.g., $local_part or $domain).

Do I need to act?

!
19.9% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Debian Exim

References (10)

Patch http://exim.org/static/doc/security/CVE-2019-13917.txt
Third Party Advisory http://www.openwall.com/lists/oss-security/2019/07/26/5
Third Party Advisory https://seclists.org/bugtraq/2019/Jul/51
https://security.gentoo.org/glsa/201909-06
Third Party Advisory https://www.debian.org/security/2019/dsa-4488
Patch http://exim.org/static/doc/security/CVE-2019-13917.txt
Third Party Advisory http://www.openwall.com/lists/oss-security/2019/07/26/5
Third Party Advisory https://seclists.org/bugtraq/2019/Jul/51
https://security.gentoo.org/glsa/201909-06
Third Party Advisory https://www.debian.org/security/2019/dsa-4488
55
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 14/34 · Moderate
Exposure 9/34 · Low