How severe is CVE-2021-37187?

CVE-2021-37187 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-37187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37187?

CVE-2021-37187 primarily affects Digi Transport Dr64 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37187?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-37187 published?

CVE-2021-37187 was published on 2021-12-10 and last updated on 2026-06-17.

CVE-2021-37187

CVE-2021-37187 is a medium-severity vulnerability in Digi Transport Dr64 Firmware with a CVSS 3.x base score of 6.5. 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-522.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Digi Transport Dr64 Firmware
Published: 2021-12-10
Last modified: 2026-06-17

Description

An issue was discovered on Digi TransPort devices through 2021-07-21. An authenticated attacker may read a password file (with reversible passwords) from the device, which allows decoding of other users' passwords.

Frequently asked questions

What is CVE-2021-37187?: An issue was discovered on Digi TransPort devices through 2021-07-21. An authenticated attacker may read a password file (with reversible passwords) from the device, which allows decoding of other users' passwords.
How severe is CVE-2021-37187?: CVE-2021-37187 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-37187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37187?: CVE-2021-37187 primarily affects Digi Transport Dr64 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37187 published?: CVE-2021-37187 was published on 2021-12-10 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:o:digi:transport_dr64_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_dr64_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_vc74_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr11_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr11_xt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr21_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr31_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr41_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:digi:transport_wr44_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Digi Transport Dr64 Firmware

CVE-2021-35978 — Critical (CVSS 9.8): An issue was discovered in Digi TransPort DR64, SR44 VC74, and WR. The ZING protocol allows arbitrary remote command…
CVE-2021-37188 — High (CVSS 8.8): An issue was discovered on Digi TransPort devices through 2021-07-21. An authenticated attacker may load customized…

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