What is CVE-2008-1257?

CVE-2008-1257 is a vulnerability in Zyxel P-660hw, classified under Cross-site Scripting. Published 2008-03-10.

Is CVE-2008-1257 known to be exploited?

14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Zyxel P-660hw

CVE-2008-1257

Cross-site scripting (XSS) vulnerability in Forms/DiagGeneral_2 on the ZyXEL P-660HW series router allows remote attackers to inject arbitrary web script or HTML via the PingIPAddr parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2008-03-10 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.016 (75.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Zyxel P-660hw — versions _t1
Zyxel P-660hw D1 — versions v2
Zyxel P-660hw D3
Zyxel P-660hw T3 — versions v2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

www.securityfocus.com/archive/1/489009/100/0/threaded (mailing-list)
www.gnucitizen.org/projects/router-hacking-challenge/
exchange.xforce.ibmcloud.com/vulnerabilities/41109 (vdb-entry)

Frequently asked questions

What is CVE-2008-1257?: CVE-2008-1257 is a vulnerability in Zyxel P-660hw, classified under Cross-site Scripting. Published 2008-03-10.
Is CVE-2008-1257 known to be exploited?: 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.