CVE-2021-38189
Published: 08 August 2021
Published
08 August 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0048
65.4th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-38189 is a critical-severity Command Injection (CWE-77) vulnerability in Lettre Lettre. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 34.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-1485
Vulnerability details
An issue was discovered in the lettre crate before 0.9.6 for Rust. In an e-mail message body, an attacker can place a . character after two <CR><LF> sequences and then inject arbitrary SMTP commands.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
lettre
lettre
0.10.0 · ≤ 0.9.6
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.