Path Traversal in Yeastar Neogate Tg400
CVE-2021-27328
Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.064 (93.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.064 · newest: 0.064 · change: 0.000
Affected products
- Yeastar Neogate Tg400
- Yeastar Neogate Tg400 Firmware — versions 91.3.0.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
- github.com/SQSamir/CVE-2021-27328 (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/161560/Yeastar-TG400-GSM-Gateway-91.3.0.3-Path-Tr… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27328?
- CVE-2021-27328 is a medium-severity vulnerability in Yeastar Neogate Tg400, classified under Path Traversal. CVSS score: 6.5/10. Published 2021-02-19.
- How severe is CVE-2021-27328?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-27328 known to be exploited?
- 28 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.