How severe is CVE-2022-37891?

CVE-2022-37891 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-2022-37891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-37891?

CVE-2022-37891 primarily affects Arubanetworks Arubaos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-37891?

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-2022-37891 published?

CVE-2022-37891 was published on 2022-10-07 and last updated on 2026-06-17.

CVE-2022-37891

CVE-2022-37891 is a critical-severity vulnerability in Arubanetworks Arubaos 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Arubanetworks Arubaos
Published: 2022-10-07
Last modified: 2026-06-17

Description

Unauthenticated buffer overflow vulnerabilities exist within the Aruba InstantOS and ArubaOS 10 web management interface. Successful exploitation results in the execution of arbitrary commands on the underlying operating system of Aruba InstantOS 6.4.x: 6.4.4.8-4.2.4.20 and below; Aruba InstantOS 6.5.x: 6.5.4.23 and below; Aruba InstantOS 8.6.x: 8.6.0.18 and below; Aruba InstantOS 8.7.x: 8.7.1.9 and below; Aruba InstantOS 8.10.x: 8.10.0.1 and below; ArubaOS 10.3.x: 10.3.1.0 and below; Aruba has released upgrades for Aruba InnstantOS that address these security vulnerabilities.

Frequently asked questions

What is CVE-2022-37891?: Unauthenticated buffer overflow vulnerabilities exist within the Aruba InstantOS and ArubaOS 10 web management interface. Successful exploitation results in the execution of arbitrary commands on the underlying operating system of Aruba InstantOS 6.4.x: 6.4.4.8-4.2.4.20 and below; Aruba InstantOS 6.5.x: 6.5.4.23 and below; Aruba InstantOS 8.6.x: 8.6.0.18 and below; Aruba InstantOS 8.7.x: 8.7.1.9 and below; Aruba InstantOS 8.10.x: 8.10.0.1 and below; ArubaOS 10.3.x: 10.3.1.0 and below; Aruba has released upgrades for Aruba InnstantOS that address these security vulnerabilities.
How severe is CVE-2022-37891?: CVE-2022-37891 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-2022-37891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-37891?: CVE-2022-37891 primarily affects Arubanetworks Arubaos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-37891?: 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-2022-37891 published?: CVE-2022-37891 was published on 2022-10-07 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Arubanetworks Arubaos

CVE-2008-7023 — Critical (CVSS 10.0): Aruba Mobility Controller running ArubaOS 3.3.1.16, and possibly other versions, installs the same default X.509…
CVE-2024-42395 — Critical (CVSS 9.8): There is a vulnerability in the AP Certificate Management Service which could allow a threat actor to execute an…
CVE-2024-42394 — Critical (CVSS 9.8): There are vulnerabilities in the Soft AP Daemon Service which could allow a threat actor to execute an unauthenticated…
CVE-2024-42393 — Critical (CVSS 9.8): There are vulnerabilities in the Soft AP Daemon Service which could allow a threat actor to execute an unauthenticated…
CVE-2024-31473 — Critical (CVSS 9.8): There is a command injection vulnerability in the underlying deauthentication service that could lead to…
CVE-2024-31472 — Critical (CVSS 9.8): There are command injection vulnerabilities in the underlying Soft AP Daemon service that could lead to unauthenticated…

All CVEs affecting Arubanetworks Arubaos →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →