CVE-2021-42165
CVE-2021-42165 is a high-severity vulnerability in Mitrastar Gpt-2541gnac-n1 Firmware with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- EPSS exploit prediction: 14% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Mitrastar Gpt-2541gnac-n1 Firmware
- Published:
- Last modified:
Description
MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices allow remote authenticated users to obtain root access by executing command "deviceinfo show file &&/bin/bash" because of incorrect sanitization of parameter "path".
Frequently asked questions
- What is CVE-2021-42165?
- MitraStar GPT-2541GNAC-N1 (HGU) 100VNZ0b33 devices allow remote authenticated users to obtain root access by executing command "deviceinfo show file &&/bin/bash" because of incorrect sanitization of parameter "path".
- How severe is CVE-2021-42165?
- CVE-2021-42165 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-42165 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-42165?
- CVE-2021-42165 affects Mitrastar Gpt-2541gnac-n1 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-42165?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-42165 published?
- CVE-2021-42165 was published on 2022-05-03 and last updated on 2026-06-17.
References
- https://github.com/leoservalli/Privilege-escalation-MitraStar/blob/main/README.md
- https://packetstormsecurity.com/files/164333/Mitrastar-GPT-2541GNAC-N1-Privilege-Escalation.html
- https://www.exploit-db.com/exploits/50351
Affected products (1)
- cpe:2.3:o:mitrastar:gpt-2541gnac-n1_firmware:br_g3.5_100vnz0b33:*:*:*:*:*:*:*
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