How severe is CVE-2011-3997?

CVE-2011-3997 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-3997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3997?

CVE-2011-3997 primarily affects Opengear Opengear Console Server Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3997?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-3997 published?

CVE-2011-3997 was published on 2011-11-09 and last updated on 2026-06-16.

CVE-2011-3997

CVE-2011-3997 is a high-severity vulnerability in Opengear Opengear Console Server Firmware with a CVSS 2.0 base score of 7.5. 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-287.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Opengear Opengear Console Server Firmware
Published: 2011-11-09
Last modified: 2026-06-16

Description

Opengear console servers with firmware before 2.2.1 allow remote attackers to bypass authentication, and modify settings or access connected equipment, via unspecified vectors.

Frequently asked questions

What is CVE-2011-3997?: Opengear console servers with firmware before 2.2.1 allow remote attackers to bypass authentication, and modify settings or access connected equipment, via unspecified vectors.
How severe is CVE-2011-3997?: CVE-2011-3997 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-3997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3997?: CVE-2011-3997 primarily affects Opengear Opengear Console Server Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-3997 published?: CVE-2011-3997 was published on 2011-11-09 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:opengear:opengear_console_server_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.0.4u1:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:opengear:opengear_console_server_firmware:2.1.0u1:*:*:*:*:*:*:*
cpe:2.3:h:opengear:acm5000_console_server:*:*:*:*:*:*:*:*
cpe:2.3:h:opengear:cm4000_console_server:*:*:*:*:*:*:*:*
cpe:2.3:h:opengear:im4004-5_console_server:*:*:*:*:*:*:*:*
cpe:2.3:h:opengear:im4200_console_server:*:*:*:*:*:*:*:*
cpe:2.3:h:opengear:img4000_console_server:*:*:*:*:*:*:*:*
cpe:2.3:h:opengear:kcs6000_rackside_console_server:*:*:*:*:*:*:*:*

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