How severe is CVE-2021-27446?

CVE-2021-27446 has a CVSS 3.x base score of 10.0, 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-2021-27446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27446?

CVE-2021-27446 primarily affects Weintek Cmt-svr-100 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27446?

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-2021-27446 published?

CVE-2021-27446 was published on 2022-05-16 and last updated on 2026-06-17.

CVE-2021-27446

CVE-2021-27446 is a critical-severity vulnerability in Weintek Cmt-svr-100 Firmware with a CVSS 3.x base score of 10.0. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 10.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Weintek Cmt-svr-100 Firmware
Published: 2022-05-16
Last modified: 2026-06-17

Description

The Weintek cMT product line is vulnerable to code injection, which may allow an unauthenticated remote attacker to execute commands with root privileges on the operation system.

Frequently asked questions

What is CVE-2021-27446?: The Weintek cMT product line is vulnerable to code injection, which may allow an unauthenticated remote attacker to execute commands with root privileges on the operation system.
How severe is CVE-2021-27446?: CVE-2021-27446 has a CVSS 3.x base score of 10.0, 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-2021-27446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27446?: CVE-2021-27446 primarily affects Weintek Cmt-svr-100 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27446?: 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-2021-27446 published?: CVE-2021-27446 was published on 2022-05-16 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:o:weintek:cmt-svr-100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-svr-102_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-svr-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-svr-202_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-g01_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-g02_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-g03_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-g04_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt3071_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt3072_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt3090_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt3103_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt3151_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-hdm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-fhd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:weintek:cmt-ctrl01_firmware:*:*:*:*:*:*:*:*

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