How severe is CVE-2009-0621?

CVE-2009-0621 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-0621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0621?

CVE-2009-0621 affects Cisco Ace 4710. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-0621?

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-2009-0621 published?

CVE-2009-0621 was published on 2009-02-26 and last updated on 2026-06-16.

CVE-2009-0621

CVE-2009-0621 is a critical-severity vulnerability in Cisco Ace 4710 with a CVSS 2.0 base score of 10.0. 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-16.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Cisco Ace 4710
Published: 2009-02-26
Last modified: 2026-06-16

Description

Cisco ACE 4710 Application Control Engine Appliance before A1(8a) uses default (1) usernames and (2) passwords for (a) the administrator, (b) web management, and (c) device management, which makes it easier for remote attackers to perform configuration changes to the Device Manager and other components, or obtain operating-system access.

Frequently asked questions

What is CVE-2009-0621?: Cisco ACE 4710 Application Control Engine Appliance before A1(8a) uses default (1) usernames and (2) passwords for (a) the administrator, (b) web management, and (c) device management, which makes it easier for remote attackers to perform configuration changes to the Device Manager and other components, or obtain operating-system access.
How severe is CVE-2009-0621?: CVE-2009-0621 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-0621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0621?: CVE-2009-0621 affects Cisco Ace 4710. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-0621?: 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-2009-0621 published?: CVE-2009-0621 was published on 2009-02-26 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:cisco:ace_4710:*:*:*:*:*:*:*:*

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