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Vulnerability record · CVE-2008-1525 · published 26 March 2008

CVE-2008-1525: Zyxel prestige 660 vulnerability

Zyxel · Prestige 660

The default SNMP configuration on ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), has a Trusted Host value of 0.0.0.0, which allows remote attackers to send SNMP requests from any source IP address.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 33.8% CWE-16 · CWE-16
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

The default SNMP configuration on ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), has a Trusted Host value of 0.0.0.0, which allows remote attackers to send SNMP requests from any source IP address.

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.gnucitizen.org/projects/router-hacking-challenge/
http://www.procheckup.com/Hacking_ZyXEL_Gateways.pdf
http://www.securityfocus.com/archive/1/489009/100/0/threaded
http://www.gnucitizen.org/projects/router-hacking-challenge/
http://www.procheckup.com/Hacking_ZyXEL_Gateways.pdf
http://www.securityfocus.com/archive/1/489009/100/0/threaded

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2008-1525), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.