What is CVE-2008-1334?

CVE-2008-1334 is a vulnerability in Bt Home Hub, classified under Improper Authentication. Published 2008-03-13.

Is CVE-2008-1334 known to be exploited?

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

Auth bypass in Bt Home Hub

CVE-2008-1334

cgi/b on the BT Home Hub router allows remote attackers to bypass authentication, and read or modify administrative settings or make arbitrary VoIP telephone calls, by placing a character at the end of the PATH_INFO, as demonstrated by (1) %5C (encoded backslash), (2) '%' (percent), and (3) '~' (tilde). NOTE: the '/' (slash) vector is already covered by CVE-2007-5383.

Vulnerability class: Broken Authentication

Published 2008-03-13 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.017 (75.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Bt Home Hub

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.gnucitizen.org/blog/holes-in-embedded-devices-authentication-bypass-pt-1/ (Exploit)
www.securityfocus.com/archive/1/489009/100/0/threaded (mailing-list)
www.gnucitizen.org/projects/router-hacking-challenge/ (Exploit)
exchange.xforce.ibmcloud.com/vulnerabilities/41271 (vdb-entry)

Frequently asked questions

What is CVE-2008-1334?: CVE-2008-1334 is a vulnerability in Bt Home Hub, classified under Improper Authentication. Published 2008-03-13.
Is CVE-2008-1334 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.