How severe is CVE-2002-0159?

CVE-2002-0159 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2002-0159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0159?

CVE-2002-0159 primarily affects Cisco Secure Access Control Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-0159?

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-2002-0159 published?

CVE-2002-0159 was published on 2002-04-22 and last updated on 2026-06-16.

CVE-2002-0159

CVE-2002-0159 is a high-severity vulnerability in Cisco Secure Access Control Server 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-134.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: Cisco Secure Access Control Server
Published: 2002-04-22
Last modified: 2026-06-16

Description

Format string vulnerability in the administration function in Cisco Secure Access Control Server (ACS) for Windows, 2.6.x and earlier and 3.x through 3.01 (build 40), allows remote attackers to crash the CSADMIN module only (denial of service of administration function) or execute arbitrary code via format strings in the URL to port 2002.

Frequently asked questions

What is CVE-2002-0159?: Format string vulnerability in the administration function in Cisco Secure Access Control Server (ACS) for Windows, 2.6.x and earlier and 3.x through 3.01 (build 40), allows remote attackers to crash the CSADMIN module only (denial of service of administration function) or execute arbitrary code via format strings in the URL to port 2002.
How severe is CVE-2002-0159?: CVE-2002-0159 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0159?: CVE-2002-0159 primarily affects Cisco Secure Access Control Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0159?: 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-2002-0159 published?: CVE-2002-0159 was published on 2002-04-22 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:cisco:secure_access_control_server:2.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:2.6.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:2.6.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.0.1:*:*:*:*:*:*:*

More vulnerabilities in Cisco Secure Access Control Server

CVE-2006-4098 — Critical (CVSS 10.0): Stack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1…
CVE-2004-1099 — Critical (CVSS 10.0): Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine…
CVE-2000-1054 — Critical (CVSS 10.0): Buffer overflow in CSAdmin module in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to cause a…
CVE-2000-1055 — Critical (CVSS 10.0): Buffer overflow in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to cause a denial of service and…
CVE-2013-3466 — Critical (CVSS 9.3): The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS…
CVE-2006-4097 — High (CVSS 7.8): Multiple unspecified vulnerabilities in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows…

All CVEs affecting Cisco Secure Access Control Server →

Other CWE-134 vulnerabilities

CVE-2012-1851 — Critical (CVSS 10.0): Format string vulnerability in the Print Spooler service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2,…
CVE-2012-0242 — Critical (CVSS 10.0): Format string vulnerability in Advantech/BroadWin WebAccess before 7.0 allows remote attackers to execute arbitrary…
CVE-2011-2475 — Critical (CVSS 10.0): Format string vulnerability in ECTrace.dll in the iMailGateway service in the Internet Mail Gateway in OneBridge Server…
CVE-2011-1568 — Critical (CVSS 10.0): Format string vulnerability in the logText function in shmemmgr9.dll in IGSSdataServer.exe 9.00.00.11074, and…
CVE-2010-4235 — Critical (CVSS 10.0): Format string vulnerability in RealNetworks Helix Server 12.x, 13.x, and 14.x before 14.2, and Helix Mobile Server…
CVE-2011-0270 — Critical (CVSS 10.0): Format string vulnerability in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows…

Browse all CWE-134 vulnerabilities →