Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-23109— Address bar spoofing on iOS using long hostnames

Quick assessment

Affected
Mozilla Firefox for iOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 134之前版本存在安全漏洞，该漏洞源于于长主机名在URLs中可以被利用来掩盖网站的实际主机或伪造网站地址。

AI Predicted 5.3 Difficulty: Easy EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Mozilla Firefox for iOS 134≤ * unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-23109

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Address bar spoofing on iOS using long hostnames
Source: CVE Program / CVE List V5
Vulnerability Description
Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 134之前版本存在安全漏洞，该漏洞源于于长主机名在URLs中可以被利用来掩盖网站的实际主机或伪造网站地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox for iOS 134 ~ * -

II. Public POCs for CVE-2025-23109

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-23109

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-23109 (1)

IV. Related Vulnerabilities

Same product: Firefox for iOS
Same vendor: Mozilla

V. Comments for CVE-2025-23109

No comments yet

Leave a comment