CVE-2008-1526

What it is

ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(PE9) and 3.40(AGD.2) through 3.40(AHQ.3), do not use a salt when calculating an MD5 password hash, which makes it easier for attackers to crack passwords.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2008-03-26 10:44 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:51 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.9% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2008-03-26 10:44 UTC

Last modified

2026-06-16 22:51 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-916

Record status

Modified

Affected

• Zyxel p-663hn-51 Firmware ≤ 3.40\(ahq.3\)
• Zyxel p-663hn-51 Firmware 3.40\(pe9\)
• Zyxel p-660h-61 Firmware ≤ 3.40\(ahq.3\)
• Zyxel p-660h-61 Firmware 3.40\(pe9\)
• Zyxel p-660h-63 Firmware ≤ 3.40\(ahq.3\)
• Zyxel p-660h-63 Firmware 3.40\(pe9\)
• Zyxel p-660h-67 Firmware ≤ 3.40\(ahq.3\)
• Zyxel p-660h-67 Firmware 3.40\(pe9\)

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

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