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CVE-2011-0746

16
FAUCET Score

CVE-2011-0746 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting the ZyXEL O2 DSL Router Classic. This flaw allows remote attackers to hijack an administrator's authenticated session to inject cross-site scripting (XSS) sequences through the PortRule_Name parameter in the Forms/PortForwarding_Edit_1 interface. The vulnerability has a CVSS score of 4.3 (Medium), indicating a medium attack complexity and partial integrity impact, with no confidentiality or availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:zyxel:o2_dsl_router_classic:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 6th percentile among its peer group of 19,953 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

int21.de / cve/CVE-2011-0746-o2-router.html
Exploit
securityreason.com / securityalert/8198
securityfocus.com / archive/1/517399/100/0/threaded