CVE-2021-46463
CRITICALCVSS 9.8/10EPSS 1.64%
Last modified
CVE-2021-46463 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().. EPSS estimates a 1.64% chance of exploitation in the next 30 days.
Description
njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Njs | <= 0.7.1 |
References
- https://github.com/nginx/njs/commit/6a40a85ff239497c6458c7dbef18f6a2736fe992Patch, Third Party Advisory
- https://github.com/nginx/njs/issues/447Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220303-0007/Third Party Advisory
- https://github.com/nginx/njs/commit/6a40a85ff239497c6458c7dbef18f6a2736fe992Patch, Third Party Advisory
- https://github.com/nginx/njs/issues/447Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220303-0007/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-46463?
njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().
How severe is CVE-2021-46463?
CVE-2021-46463 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.
How do I fix CVE-2021-46463?
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-2021-46456D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to co…9.8
- CVE-2021-46457D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to co…9.8
- CVE-2021-46458Victor CMS v1.0 was discovered to contain a SQL injection vu…7.5
- CVE-2021-46459Victor CMS v1.0 was discovered to contain multiple SQL injec…7.5
- CVE-2021-46461njs through 0.7.0, used in NGINX, was discovered to contain …9.8
- CVE-2021-46462njs through 0.7.1, used in NGINX, was discovered to contain …7.5
- CVE-2021-46474Jsish v3.5.0 was discovered to contain a heap buffer overflo…5.5
- CVE-2021-46475Jsish v3.5.0 was discovered to contain a heap buffer overflo…5.5
- CVE-2021-46477Jsish v3.5.0 was discovered to contain a heap buffer overflo…5.5
- CVE-2021-46478Jsish v3.5.0 was discovered to contain a heap buffer overflo…5.5
- CVE-2021-46480Jsish v3.5.0 was discovered to contain a heap buffer overflo…5.5
- CVE-2021-46481Jsish v3.5.0 was discovered to contain a memory leak via lin…5.5
Are you affected by CVE-2021-46463?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST