How severe is CVE-2020-27555?

CVE-2020-27555 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-27555 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27555?

CVE-2020-27555 affects Basetech Ge-131 Bt-1837836 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27555?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-27555 published?

CVE-2020-27555 was published on 2020-11-17 and last updated on 2026-06-17.

CVE-2020-27555

CVE-2020-27555 is a critical-severity vulnerability in Basetech Ge-131 Bt-1837836 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1188.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1188
Affected product: Basetech Ge-131 Bt-1837836 Firmware
Published: 2020-11-17
Last modified: 2026-06-17

Description

Use of default credentials for the telnet server in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to execute arbitrary system commands as the root user.

Frequently asked questions

What is CVE-2020-27555?: Use of default credentials for the telnet server in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to execute arbitrary system commands as the root user.
How severe is CVE-2020-27555?: CVE-2020-27555 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-27555 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27555?: CVE-2020-27555 affects Basetech Ge-131 Bt-1837836 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27555?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-27555 published?: CVE-2020-27555 was published on 2020-11-17 and last updated on 2026-06-17.

References

https://infosec.rm-it.de/2020/11/04/basetech-ip-camera-analysis/#vulns

Affected products (1)

cpe:2.3:o:basetech:ge-131_bt-1837836_firmware:20180921:*:*:*:*:*:*:*

More vulnerabilities in Basetech Ge-131 Bt-1837836 Firmware

CVE-2020-27554 — High (CVSS 7.5): Cleartext Transmission of Sensitive Information vulnerability in BASETech GE-131 BT-1837836 firmware 20180921 exists…
CVE-2020-27553 — High (CVSS 7.5): In BASETech GE-131 BT-1837836 firmware 20180921, the web-server on the system is configured with the option…
CVE-2020-27558 — Medium (CVSS 6.5): Use of an undocumented user in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to view the video…
CVE-2020-27557 — Medium (CVSS 5.5): Unprotected Storage of Credentials vulnerability in BASETech GE-131 BT-1837836 firmware 20180921 allows local users to…
CVE-2020-27556 — Medium (CVSS 5.3): A predictable device ID in BASETech GE-131 BT-1837836 firmware 20180921 allows unauthenticated remote attackers to…

All CVEs affecting Basetech Ge-131 Bt-1837836 Firmware →

Other CWE-1188 (Insecure Default Initialization of Resource) vulnerabilities

CVE-2026-31957 — Critical (CVSS 10.0): Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From 3.0.0 to before 3.1.0, if…
CVE-2025-41672 — Critical (CVSS 10.0): A remote unauthenticated attacker may use default certificates to generate JWT Tokens and gain full access to the tool…
CVE-2024-0001 — Critical (CVSS 10.0): A condition exists in FlashArray Purity whereby a local account intended for initial array configuration remains active…
CVE-2024-2912 — Critical (CVSS 10.0): An insecure deserialization vulnerability exists in the BentoML framework, allowing remote code execution (RCE) by…
CVE-2021-34795 — Critical (CVSS 10.0): Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON)…
CVE-2017-7964 — Critical (CVSS 10.0): Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for…

Browse all CWE-1188 (Insecure Default Initialization of Resource) vulnerabilities →