CVE-2004-1540

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2004-12-31 · updated 2026-06-16

Description

ZyXEL Prestige 623, 650, and 652 HW Routers, and possibly other versions, with HTTP Remote Administration enabled, does not require a password to access rpFWUpload.html, which allows remote attackers to reset the router configuration file.

Affected products

Zyxel Prestige: 645r_a1, 650h, 650hw, 650hw_31, 650r
Zyxel Zynos: 3.40, is.3, is.5

References

http://marc.info/?l=bugtraq&m=110116413414615&w=2
http://marc.info/?l=bugtraq&m=110135136811344&w=2
http://secunia.com/advisories/13278
http://securitytracker.com/id?1012298
http://www.osvdb.org/12108
http://www.securityfocus.com/bid/11723
https://exchange.xforce.ibmcloud.com/vulnerabilities/18202
http://marc.info/?l=bugtraq&m=110116413414615&w=2
http://marc.info/?l=bugtraq&m=110135136811344&w=2
http://secunia.com/advisories/13278
http://securitytracker.com/id?1012298
http://www.osvdb.org/12108

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