How severe is CVE-2021-27444?

CVE-2021-27444 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-2021-27444 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27444?

CVE-2021-27444 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-2021-27444?

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-2021-27444 published?

CVE-2021-27444 was published on 2022-05-16 and last updated on 2026-06-17.

CVE-2021-27444

CVE-2021-27444 is a critical-severity vulnerability in Weintek Cmt-svr-100 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
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 various improper access controls, which may allow an unauthenticated attacker to remotely access and download sensitive information and perform administrative actions on behalf of a legitimate administrator.

Frequently asked questions

What is CVE-2021-27444?: The Weintek cMT product line is vulnerable to various improper access controls, which may allow an unauthenticated attacker to remotely access and download sensitive information and perform administrative actions on behalf of a legitimate administrator.
How severe is CVE-2021-27444?: CVE-2021-27444 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-2021-27444 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27444?: CVE-2021-27444 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-2021-27444?: 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-2021-27444 published?: CVE-2021-27444 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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