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CVE-2021-38371 Details
Description
The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html | CVE | |
| https://nostarttls.secvuln.info | CVE | Tool Signature |
| https://www.exim.org | CVE | Product |
| https://www.exim.org/static/doc/security/CVE-2021-38371.txt | CVE | Broken LinkVendor Advisory |
| https://nostarttls.secvuln.info | [email protected] | Tool Signature |
| https://www.exim.org | [email protected] | Product |
| https://www.exim.org/static/doc/security/CVE-2021-38371.txt | [email protected] | Broken LinkVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| exim exim | <= 4.94.2 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 3, 2025 | CVE Modified | CVE |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Aug 20, 2021 | Initial Analysis | [email protected] |