CVE-2020-28026
CRITICAL
9.8
CVSS Score
Published: May 6, 2021 at 04:41 AM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorExim
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Severity
CRITICAL9.8
Exploit prediction
EPSS 9%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28026-FGETS.txtCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-Other
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