How severe is CVE-2021-37731?

CVE-2021-37731 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over physical access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-37731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37731?

CVE-2021-37731 primarily affects Arubanetworks Sd-wan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37731?

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

When was CVE-2021-37731 published?

CVE-2021-37731 was published on 2021-09-07 and last updated on 2026-06-17.

CVE-2021-37731

CVE-2021-37731 is a medium-severity vulnerability in Arubanetworks Sd-wan with a CVSS 3.x base score of 6.2. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v2: 7.2
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Arubanetworks Sd-wan
Published: 2021-09-07
Last modified: 2026-06-17

Description

A local path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to 8.6.0.0-2.2.0.4; Prior to 8.7.1.1, 8.6.0.7, 8.5.0.12, 8.3.0.16. Aruba has released patches for Aruba SD-WAN Software and Gateways and ArubaOS that address this security vulnerability.

Frequently asked questions

What is CVE-2021-37731?: A local path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): Prior to 8.6.0.0-2.2.0.4; Prior to 8.7.1.1, 8.6.0.7, 8.5.0.12, 8.3.0.16. Aruba has released patches for Aruba SD-WAN Software and Gateways and ArubaOS that address this security vulnerability.
How severe is CVE-2021-37731?: CVE-2021-37731 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over physical access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-37731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37731?: CVE-2021-37731 primarily affects Arubanetworks Sd-wan. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37731 published?: CVE-2021-37731 was published on 2021-09-07 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:arubanetworks:sd-wan:*:*:*:*:*:*:*:*
cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*

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