CVE-2011-0746 — Cross-site request forgery (CSRF) vulnerability in Forms/PortForwarding_Edit_1 on the ZyXEL O2 DSL Router Classic allows remote attackers to hijack the authentication of administrators for requests that insert cross-site scripting (XSS) sequences via the PortRule_Name parameter

Back Back to CVE browser

MEDIUM

Cross-site request forgery (CSRF) vulnerability in Forms/PortForwarding_Edit_1 on the ZyXEL O2 DSL Router Classic allows remote attackers to hijack the authentication of administrators for requests that insert cross-site scripting (XSS) sequences via the PortRule_Name parameter

Published Apr 13, 2011

4.3

MEDIUM

CVSS 2.0

EPSS 0.54%

Description

Cross-site request forgery (CSRF) vulnerability in Forms/PortForwarding_Edit_1 on the ZyXEL O2 DSL Router Classic allows remote attackers to hijack the authentication of administrators for requests that insert cross-site scripting (XSS) sequences via the PortRule_Name parameter.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.54% 0.00539

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00539

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.54% (0.00539)	43.27th	v5 (v2026.06.15)
Jun 15, 2026	0.54% (0.00539)	40.86th	v5 (v2026.06.15)
Mar 17, 2025	0.08% (0.00079)	21.01th	v4 (v2025.03.14)
Dec 12, 2024	0.18% (0.00184)	57.03th	v3 (v2023.03.01)
May 2, 2023	0.18% (0.00184)	54.22th	v3 (v2023.03.01)
Mar 7, 2023	0.18% (0.00179)	53.26th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-352

CSRF

References (3)

http://int21.de/cve/CVE-2011-0746-o2-router.html
x_refsource_MISCExploit
http://securityreason.com/securityalert/8198
third-party-advisoryx_refsource_SREASON
http://www.securityfocus.com/archive/1/517399/100/0/threaded
mailing-listx_refsource_BUGTRAQ

Link	Providers	Tags
http://int21.de/cve/CVE-2011-0746-o2-router.html		x_refsource_MISCExploit
http://securityreason.com/securityalert/8198		third-party-advisoryx_refsource_SREASON
http://www.securityfocus.com/archive/1/517399/100/0/threaded		mailing-listx_refsource_BUGTRAQ

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Apr 13, 2011

Updated Aug 6, 2024

Reserved Feb 2, 2011

Link CVE-2011-0746

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-0746

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-0746