CVE-2021-36377
HIGHCVSS 7.5/10EPSS 0.57%
Last modified
CVE-2021-36377 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Fossil before 2.14.2 and 2.15.x before 2.15.2 often skips the hostname check during TLS certificate validation.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
Description
Fossil before 2.14.2 and 2.15.x before 2.15.2 often skips the hostname check during TLS certificate validation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fossil-Scm | Fossil | < 2.14.2 |
| Fossil-Scm | Fossil | >= 2.15.0, < 2.15.2 |
| Fedoraproject | Fedora | 34 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-36377?
Fossil before 2.14.2 and 2.15.x before 2.15.2 often skips the hostname check during TLS certificate validation.
How severe is CVE-2021-36377?
CVE-2021-36377 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36377?
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.
Related CVEs from 2021
- CVE-2021-36370An issue was discovered in Midnight Commander through 4.8.26…7.5
- CVE-2021-36371Emissary-Ingress (formerly Ambassador API Gateway) through 1…3.7
- CVE-2021-36372In Apache Ozone versions prior to 1.2.0, Initially generated…9.8
- CVE-2021-36373When reading a specially crafted TAR archive an Apache Ant b…5.5
- CVE-2021-36374When reading a specially crafted ZIP archive, or a derived f…5.5
- CVE-2021-36376dandavison delta before 0.8.3 on Windows resolves an executa…7.8
- CVE-2021-36379Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2021-3638An out-of-bounds memory access flaw was found in the ATI VGA…6.5
- CVE-2021-36380Sunhillo SureLine before 8.7.0.1.1 allows Unauthenticated OS…9.8
- CVE-2021-36381In Edifecs Transaction Management through 2021-07-12, an una…5.3
- CVE-2021-36382Devolutions Server before 2021.1.18, and LTS before 2020.3.2…3.7
- CVE-2021-36383Xen Orchestra (with xo-web through 5.80.0 and xo-server thro…4.3
Are you affected by CVE-2021-36377?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST