VulnerabilityPublished 27 May 2025

CVE-2025-5066: Google Chrome · Inappropriate Implementation

Affects Google ChromeSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 137.0.7151.55 when convenient.

Data as of 26 Oct 2026, 09:08 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 137.0.7151.55

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
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: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
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: None: There is no loss of integrity within 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 27 May 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

Upgrade Google Chrome to 137.0.7151.55.

Affected software

Product	Affected	Fixed in
Google Chrome	Affected =137.0.7151.55 <137.0.7151.55	Fixed in 137.0.7151.55

AI-suggested

European organizations should prioritize updating Google Chrome on Android devices to version 137.0.7151.55 or later as soon as it becomes available. If you cannot patch yet, organizations should implement targeted user awareness training focusing on the risks of interacting with unknown links and performing unsolicited UI gestures on mobile browsers. Deploy mobile device management (MDM) solutions to enforce browser updates and restrict installation of untrusted apps or extensions that could facilitate exploitation. Additionally, consider implementing network-level protections such as web filtering to block access to known malicious or suspicious websites. Security teams should monitor for phishing campaigns that might leverage this vulnerability and prepare incident response plans to address potential UI spoofing attacks. Finally, encourage users to report suspicious UI behavior immediately to IT security teams.

Description

Inappropriate implementation in Messages in Google Chrome on Android prior to 137.0.7151.55 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Impact

For European organizations, this vulnerability poses a significant risk primarily through social engineering attacks that could compromise user trust and confidentiality. Since the attack requires user interaction, the risk is elevated in environments where users frequently access untrusted web content or receive links from external sources. Confidential information could be exposed if users are tricked into entering sensitive data into spoofed UI elements. This can lead to credential theft, unauthorized access to corporate resources, or leakage of personal data, which is particularly critical under the GDPR framework in Europe. The impact is heightened in sectors with high reliance on mobile devices and Chrome browser usage, such as finance, healthcare, and government. Additionally, the medium severity rating suggests that while the vulnerability is not critical, it still demands timely attention to prevent exploitation. The absence of known exploits in the wild provides a window for mitigation before active attacks emerge.

CWE-451User Interface (UI) Misrepresentation of Critical Information (opens in a new tab)
Class weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.
Implementation · Input Validation
Perform data validation (e.g. syntax, length, etc.) before interpreting the data.
Architecture and Design · Output Encoding
Create a strategy for presenting information, and plan for how to display unusual characters.
OWASP Cheat Sheets
Secure Design Principles (opens in a new tab)
Attack patterns
Spear Phishing (opens in a new tab)
Mobile Phishing (opens in a new tab)
Phishing (opens in a new tab)
Resource Location Spoofing (opens in a new tab)
Action Spoofing (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Jul 2025, 01:24 UTC

WeaknessesCWE-451

Technical details

References

Community reviews

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