CVE-2020-28247
MEDIUMCVSS 5.3/10EPSS 1.50%
Last modified
CVE-2020-28247 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. The lettre library through 0.10.0-alpha for Rust allows arbitrary sendmail option injection via transport/sendmail/mod.rs.. EPSS estimates a 1.50% chance of exploitation in the next 30 days.
Description
The lettre library through 0.10.0-alpha for Rust allows arbitrary sendmail option injection via transport/sendmail/mod.rs.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Lettre | Lettre | >= 0.8.0, <= 0.8.3 | — |
| Lettre | Lettre | >= 0.9.0, <= 0.9.5 | — |
| Lettre | Lettre | 0.7.0 | — |
| Lettre | Lettre | 0.10.0 | Alpha1 |
References
- https://github.com/RustSec/advisory-db/pull/478/filesPatch, Third Party Advisory
- https://github.com/lettre/lettreProduct, Third Party Advisory
- https://rustsec.org/advisories/RUSTSEC-2020-0069.htmlThird Party Advisory
- https://github.com/RustSec/advisory-db/pull/478/filesPatch, Third Party Advisory
- https://github.com/lettre/lettreProduct, Third Party Advisory
- https://rustsec.org/advisories/RUSTSEC-2020-0069.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-28247?
The lettre library through 0.10.0-alpha for Rust allows arbitrary sendmail option injection via transport/sendmail/mod.rs.
How severe is CVE-2020-28247?
CVE-2020-28247 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.
How do I fix CVE-2020-28247?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-28247?
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Scan your code nowSource: NVD / NIST