CVE-2021-25943
CRITICALCVSS 9.8/10EPSS 3.30%
Last modified
CVE-2021-25943 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Prototype pollution vulnerability in '101' versions 1.0.0 through 1.6.3 allows an attacker to cause a denial of service and may lead to remote code execution.. EPSS estimates a 3.30% chance of exploitation in the next 30 days.
Description
Prototype pollution vulnerability in '101' versions 1.0.0 through 1.6.3 allows an attacker to cause a denial of service and may lead to remote code execution.
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 |
|---|---|---|
| 101 Project | 101 | >= 1.0.0, <= 1.6.3 |
References
- https://github.com/tjmehta/101/blob/d87f63ce2a4cbdc476e8287abd78327c3144d646/set.js#L52Exploit, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25943Exploit, Third Party Advisory
- https://github.com/tjmehta/101/blob/d87f63ce2a4cbdc476e8287abd78327c3144d646/set.js#L52Exploit, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25943Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-25943?
Prototype pollution vulnerability in '101' versions 1.0.0 through 1.6.3 allows an attacker to cause a denial of service and may lead to remote code execution.
How severe is CVE-2021-25943?
CVE-2021-25943 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.30% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25943?
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
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- CVE-2021-25938In ArangoDB, versions v2.2.6.2 through v3.7.10 are vulnerabl…6.1
- CVE-2021-25939In ArangoDB, versions v3.7.0 through v3.9.0-alpha.1 have a f…2.7
- CVE-2021-25940In ArangoDB, versions v3.7.6 through v3.8.3 are vulnerable t…8
- CVE-2021-25941Prototype pollution vulnerability in 'deep-override' version…9.8
- CVE-2021-25944Prototype pollution vulnerability in 'deep-defaults' version…9.8
- CVE-2021-25945Prototype pollution vulnerability in 'js-extend' versions 0.…9.8
- CVE-2021-25946Prototype pollution vulnerability in `nconf-toml` versions 0…9.8
- CVE-2021-25947Prototype pollution vulnerability in 'nestie' versions 0.0.0…9.8
- CVE-2021-25948Prototype pollution vulnerability in 'expand-hash' versions …9.8
- CVE-2021-25949Prototype pollution vulnerability in 'set-getter' version 0.…9.8
Are you affected by CVE-2021-25943?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST