CRITICAL
CVE-2009-0621
CWE-16Published: February 26, 2009· Updated: Jun 16, 2026
10.0
CVSS v3.1
Official 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.
Technical Analysis
CVE-2009-0621 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected Vendors & Products
Cisco1 product(s)
ace 4710
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (4)
Quick Facts
CVE IDCVE-2009-0621
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-16
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 26, 2009
Related CVEs (CWE-16)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-0621 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.