CVE-2025-14373VulnerabilityPublished 12 Dec 2025

CVE-2025-14373: Google Chrome · Inappropriate implementation

Affects Google ChromeSource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium : upgrade to 143.0.7499.110 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

4.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 143.0.7499.110

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: Low
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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
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 12 Dec 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 2026-10-26.

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 143.0.7499.110.

Affected software

Product	Affected	Fixed in
Google Chrome	Affected =143.0.7499.110 <143.0.7499.110	Fixed in 143.0.7499.110

AI-suggested

European organizations should implement targeted mitigation strategies beyond generic patching advice. First and foremost, ensure all Android devices running Chrome are updated to version 143.0.7499.110 or later, which contains the fix. Employ mobile device management (MDM) solutions to enforce browser updates and restrict installation of outdated or unapproved apps. Educate users about the risks of domain spoofing and encourage vigilance when interacting with links, especially those received via email or messaging apps. Deploy email filtering and anti-phishing technologies to reduce exposure to malicious links. Consider implementing browser security extensions or enterprise policies that highlight or verify URL authenticity. For high-risk sectors, enforce multi-factor authentication to mitigate credential theft risks. Monitor network traffic for suspicious activity indicative of phishing campaigns. Finally, collaborate with security teams to simulate phishing exercises that include domain spoofing scenarios to raise awareness and test defenses.

Description

Inappropriate implementation in Toolbar in Google Chrome on Android prior to 143.0.7499.110 allowed a remote attacker to perform domain spoofing via a crafted HTML page. (Chromium security severity: Medium)

Impact

For European organizations, the primary impact of CVE-2025-14373 lies in the increased risk of phishing attacks facilitated by domain spoofing in Chrome on Android devices. Mobile devices are widely used across European enterprises for accessing corporate resources, email, and web applications. A successful spoofing attack could lead to credential theft, unauthorized access, or malware deployment if users are tricked into interacting with malicious sites masquerading as legitimate ones. Although the vulnerability does not directly compromise system integrity or availability, the indirect consequences of phishing can be severe, including data breaches and financial loss. Sectors with high mobile usage such as finance, healthcare, and government are particularly at risk. The medium severity rating and absence of known exploits reduce immediate urgency but do not eliminate the threat, especially as attackers may develop exploits over time. The impact is compounded in environments where users are less security-aware or where multi-factor authentication is not enforced.

CWE-1021Improper Restriction of Rendered UI Layers or Frames (opens in a new tab)
Base weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.
Implementation
The use of X-Frame-Options allows developers of web content to restrict the usage of their application within the form of overlays, frames, or iFrames. The developer can indicate from which domains can frame the content.
Implementation
A developer can use a "frame-breaker" script in each page that should not be framed. This is very helpful for legacy browsers that do not support X-Frame-Options security feature previously mentioned.
Implementation
This defense-in-depth technique can be used to prevent the improper usage of frames in web applications. It prioritizes the valid sources of data to be loaded into the application through the usage of declarative policies.
OWASP Cheat Sheets
Content Security Policy (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V14.4.3 (opens in a new tab)
V14.4.7 (opens in a new tab)
Attack patterns
Clickjacking (opens in a new tab)
Flash File Overlay (opens in a new tab)
iFrame Overlay (opens in a new tab)
Task Impersonation (opens in a new tab)
Tapjacking (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 19 Dec 2025, 20:22 UTC

WeaknessesCWE-1021

Technical details

References

Community reviews

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