CVE-2021-28961
HIGHCVSS 8.8/10EPSS 1.53%
Last modified
CVE-2021-28961 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. applications/luci-app-ddns/luasrc/model/cbi/ddns/detail.lua in the DDNS package for OpenWrt 19.07 allows remote authenticated users to inject arbitrary commands via POST requests.. EPSS estimates a 1.53% chance of exploitation in the next 30 days.
Description
applications/luci-app-ddns/luasrc/model/cbi/ddns/detail.lua in the DDNS package for OpenWrt 19.07 allows remote authenticated users to inject arbitrary commands via POST requests.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openwrt | Openwrt | 19.07.0 |
References
- https://github.com/openwrt/luci/commit/9df7ea4d66644df69fcea18b36bc465912ffcPatch, Third Party Advisory
- https://openwrt.org/advisory/2021-08-01-3Patch, Vendor Advisory
- https://github.com/openwrt/luci/commit/9df7ea4d66644df69fcea18b36bc465912ffcPatch, Third Party Advisory
- https://openwrt.org/advisory/2021-08-01-3Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-28961?
applications/luci-app-ddns/luasrc/model/cbi/ddns/detail.lua in the DDNS package for OpenWrt 19.07 allows remote authenticated users to inject arbitrary commands via POST requests.
How severe is CVE-2021-28961?
CVE-2021-28961 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.53% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28961?
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-2021-28961?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST