VulnerabilityModified
CVE-2020-28026
Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN).
CRITICAL 9.8EPSS 9.33%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.33% probability · 95th percentile
- CISA KEV
- Not listed
- Affected
- exim/exim
- Source
- cve@mitre.org
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.