CVE-2025-11209VulnerabilityPublished 6 Nov 2025Updated 12 Nov 2025

CVE-2025-11209: Google Chrome · Inappropriate Implementation

Affects Google ChromeSource CVE Database V5

Not known to be exploited · CVSS 8.2 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score

8.2High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Google Chrome	Affected =141.0.7390.54	Fixed in–

AI-suggested

European organizations should immediately ensure all Android devices are updated to Google Chrome version 141.0.7390.54 or later, as this is the primary fix for the vulnerability. Mobile device management (MDM) solutions should be leveraged to enforce browser updates and prevent the use of outdated versions. Security awareness training must emphasize vigilance against URL spoofing and phishing attempts, instructing users to verify website legitimacy through additional means beyond the URL bar, such as checking for HTTPS certificates and domain details. Network-level protections like web filtering and anti-phishing tools can help block access to known malicious sites exploiting this vulnerability. Organizations should monitor for suspicious activities indicative of phishing campaigns or credential theft attempts. Incident response plans should be updated to address potential exploitation scenarios involving browser UI spoofing. Finally, collaboration with browser vendors and security communities is recommended to stay informed about patches and emerging threats related to this vulnerability.

Description

Inappropriate implementation in Omnibox in Google Chrome on Android prior to 141.0.7390.54 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Medium)

Impact

For European organizations, this vulnerability poses a significant risk to user trust and security posture. Attackers exploiting this flaw can conduct sophisticated phishing campaigns by displaying fake URLs in the Omnibox, tricking employees or customers into divulging credentials, installing malware, or performing unauthorized transactions. This can lead to data breaches, financial losses, and reputational damage. Organizations relying heavily on Android devices with Chrome installed, especially in sectors like finance, healthcare, and government, are particularly vulnerable. The confidentiality of sensitive information is at high risk, while integrity and availability impacts are lower. The lack of required user interaction or privileges means attackers can exploit the vulnerability remotely and silently, increasing the threat surface. Additionally, the widespread use of Chrome on Android devices across Europe amplifies the potential scale of impact. The vulnerability could also facilitate targeted attacks against high-profile entities by leveraging social engineering based on the spoofed URL bar.

CWE-290Authentication Bypass by Spoofing (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
OWASP Cheat Sheets
REST Security (opens in a new tab)
JSON Web Token for Java (opens in a new tab)
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V3.5.1 (opens in a new tab)
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
Attack patterns
Creating a Rogue Certification Authority Certificate (opens in a new tab)
Web Services API Signature Forgery Leveraging Hash Function Extension Weakness (opens in a new tab)
Signature Spoof (opens in a new tab)
Signature Spoofing by Misrepresentation (opens in a new tab)
Session Credential Falsification through Prediction (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Nov 2025, 22:43 UTC

WeaknessesCWE-290

Technical details

References

Community reviews

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