CVE-2021-31718
HIGHCVSS 8.8/10EPSS 0.96%
Last modified
CVE-2021-31718 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The server in npupnp before 4.1.4 is affected by DNS rebinding in the embedded web server (including UPnP SOAP and GENA endpoints), leading to remote code execution.. EPSS estimates a 0.96% chance of exploitation in the next 30 days.
Description
The server in npupnp before 4.1.4 is affected by DNS rebinding in the embedded web server (including UPnP SOAP and GENA endpoints), leading to remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Npupnp Project | Npupnp | < 4.1.4 |
References
- http://www.openwall.com/lists/oss-security/2021/04/25/2Mailing List, Third Party Advisory
- https://framagit.org/medoc92/npupnpThird Party Advisory
- https://www.lesbonscomptes.com/upmpdcli/npupnp-doc/libnpupnp.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/04/25/2Mailing List, Third Party Advisory
- https://framagit.org/medoc92/npupnpThird Party Advisory
- https://www.lesbonscomptes.com/upmpdcli/npupnp-doc/libnpupnp.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31718?
The server in npupnp before 4.1.4 is affected by DNS rebinding in the embedded web server (including UPnP SOAP and GENA endpoints), leading to remote code execution.
How severe is CVE-2021-31718?
CVE-2021-31718 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31718?
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
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- 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-2021-31718?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST