What is CVE-2008-1259?

CVE-2008-1259 is a vulnerability in Zyxel P-2602hw-D1a, classified under Improper Authentication. Published 2008-03-10.

Is CVE-2008-1259 known to be exploited?

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

Auth bypass in Zyxel P-2602hw-D1a

CVE-2008-1259

The Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a user who previously authenticated within the previous 5 minutes.

Vulnerability class: Broken Authentication

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

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.024 (83.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Zyxel P-2602hw-D1a

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.securityfocus.com/archive/1/489009/100/0/threaded (mailing-list)
www.gnucitizen.org/projects/router-hacking-challenge/ (Exploit)
exchange.xforce.ibmcloud.com/vulnerabilities/41112 (vdb-entry)

Frequently asked questions

What is CVE-2008-1259?: CVE-2008-1259 is a vulnerability in Zyxel P-2602hw-D1a, classified under Improper Authentication. Published 2008-03-10.
Is CVE-2008-1259 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.