How severe is CVE-2012-1806?

CVE-2012-1806 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-1806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1806?

CVE-2012-1806 primarily affects Koyo H0-ecom. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-1806?

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-2012-1806 published?

CVE-2012-1806 was published on 2012-04-13 and last updated on 2026-06-16.

CVE-2012-1806

CVE-2012-1806 is a high-severity vulnerability in Koyo H0-ecom 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: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Koyo H0-ecom
Published: 2012-04-13
Last modified: 2026-06-16

Description

The ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 supports a maximum password length of 8 bytes, which makes it easier for remote attackers to obtain access via a brute-force attack.

Frequently asked questions

What is CVE-2012-1806?: The ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 supports a maximum password length of 8 bytes, which makes it easier for remote attackers to obtain access via a brute-force attack.
How severe is CVE-2012-1806?: CVE-2012-1806 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-1806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1806?: CVE-2012-1806 primarily affects Koyo H0-ecom. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1806?: 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-2012-1806 published?: CVE-2012-1806 was published on 2012-04-13 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:koyo:h0-ecom:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h0-ecom100:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h2-ecom:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h2-ecom-f:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h2-ecom100:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h4-ecom:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h4-ecom-f:*:*:*:*:*:*:*:*
cpe:2.3:a:koyo:h4-ecom100:*:*:*:*:*:*:*:*

More vulnerabilities in Koyo H0-ecom

CVE-2012-1808 — Critical (CVSS 10.0): The web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM,…
CVE-2012-1805 — Critical (CVSS 10.0): Buffer overflow in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM,…
CVE-2012-1809 — Medium (CVSS 5.0): The web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM,…
CVE-2012-1807 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in the web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100,…

All CVEs affecting Koyo H0-ecom →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →