Is CVE-2009-3423 being actively exploited?

CVE-2009-3423 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-3423?

CVE-2009-3423 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2009-3423

MEDIUM · CVSS 6.8EPSS 2.6%EU EUVD

login.php in Zenas PaoLink 1.0, when register_globals is enabled, allows remote attackers to bypass authentication and gain administrative access by setting the login_ok parameter to 1.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-287
EPSS score: 2.6% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-3405)
Published: September 25, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-3405 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

zenas / paolink

References

http://secunia.com/advisories/36023(Vendor Advisory)
http://www.exploit-db.com/exploits/9292
http://www.osvdb.org/56756(Exploit)
https://exchange.xforce.ibmcloud.com/vulnerabilities/52099

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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