Is CVE-2008-1523 being actively exploited?

CVE-2008-1523 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2008-1523?

CVE-2008-1523 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2008-1523

MEDIUM · CVSS 5.0EPSS 1.2%EU EUVD

ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to obtain ISP and Dynamic DNS credentials by sending a direct request for (1) WAN.html, (2) wzPPPOE.html, and (3) rpDyDNS.html, and then reading the HTML source.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 1.2% (69th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2008-1524)
Published: March 26, 2008
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-1524 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

zyxel / prestige 660
zyxel / prestige 660
zyxel / prestige 661
zyxel / zynos
zyxel / zynos
zyxel / zynos
zyxel / zynos
zyxel / zynos
zyxel / zynos

References

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

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