CVE-2021-3990
MEDIUMCVSS 6.5/10EPSS 0.86%
Last modified
CVE-2021-3990 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). EPSS estimates a 0.86% chance of exploitation in the next 30 days.
Description
showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Showdoc | Showdoc | < 2.9.13 |
References
- https://github.com/star7th/showdoc/commit/a9886f26c08225e0adca75c67dfca3f7c42b87d0Patch, Third Party Advisory
- https://huntr.dev/bounties/0680067d-56a7-4412-b06e-a267e850ae9fExploit, Patch, Third Party Advisory
- https://github.com/star7th/showdoc/commit/a9886f26c08225e0adca75c67dfca3f7c42b87d0Patch, Third Party Advisory
- https://huntr.dev/bounties/0680067d-56a7-4412-b06e-a267e850ae9fExploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3990?
showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
How severe is CVE-2021-3990?
CVE-2021-3990 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3990?
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-2021-3990?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST