CVE-2021-27715
No exploitation reported by the sources we read.
- Published2023-09-08
- WeaknessCWE-287
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
An issue was discovered in MoFi Network MOFI4500-4GXeLTE-V2 3.5.6-xnet-5052 allows attackers to bypass the authentication and execute arbitrary code via crafted HTTP request.
Timeline
dates in UTC- 2023-09-0803:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27715?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27715?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
CISA-ADP · NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.5 | = 3.5.6-xnet-5052 | no fix published | CISA-ADP |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.5 | = 3.5.6-xnet-5052 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
No fix published by the sources we read yet. NVD record
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- CISA-ADPSSVC decisionnone2024-09-26
- OpenCVESSVC decisionnone—
- NVDCVSS 3.19.8read 2026-10-23
- NVDweakness (CWE)CWE-287read 2026-10-23
- FIRST EPSSEPSS score1.1 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2023-09-08
- Last Modified
- 2026-07-09
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27715?
Is CVE-2021-27715 actively exploited?
What is the CVSS score for CVE-2021-27715?
Hear about the next vulnerability in your software
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
No credit card required · No monthly cap on website lookups · 250 API requests/month
Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.