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Google Chrome EUVDEUVD-2026-93652

| CVE-2026-106272 MEDIUM
User Interface (UI) Misrepresentation of Critical Information (CWE-451)
2026-10-06 Chrome GHSA-333x-v5m7-6vff
5.4
CVSS 3.1 · Vendor: Chrome
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Lure victim via social engineering
  2. Exploit
    Deliver crafted network traffic to Chromoting
  3. Execution
    Spoof Chromoting UI elements
  4. Impact
    Deceive user into trusting falsified interface

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V3 - Web Frontend Security UI security representation
Exploitation Conditions

Requires the victim to be running Google Chrome's Chromoting (Chrome Remote Desktop) component on Windows at a version prior to 155.0.8059.39, and requires the victim to interact with the session (UI:R) under attacker social-engineering pressure. The attacker must be positioned to deliver crafted network traffic to the Chromoting connection. Limiting factors: mandatory user interaction plus social engineering (not automatable), dependence on the Chromoting feature being actively in use rather than a default always-on surface, Windows-only scope, and no elevation of impact beyond UI spoofing (no code execution or authenticated access granted).

Impact

This is a genuinely low-priority issue despite its network attack vector. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L) yields a base score of 5.4 (medium), but two factors heavily constrain real-world risk: UI:R means the attack cannot succeed without victim interaction, and the description explicitly requires social engineering, so exploitation is not automatable. Google's own Chromium severity rating is 'Low,' which aligns with the limited technical impact (UI spoofing, not code execution or data theft). No EPSS score, CISA KEV listing, or public exploit code was provided in the intelligence, so there is no evidence of exploitation probability or active use. Exploitation status: no public exploit identified at time of analysis. One internal inconsistency to verify: the official vector lists A:L (low availability impact), which is unusual for a pure UI-misrepresentation flaw (CWE-451) where the expected impact is integrity/confidentiality of displayed information - verify the availability impact with the vendor advisory. Overall, this ranks well below Chrome's actively-exploited RCE and sandbox-escape bugs and should be remediated via normal patch cadence.

Exploit ScenarioDerived

An attacker uses social engineering to induce a victim running Chrome Remote Desktop (Chromoting) on Windows to interact with an attacker-influenced session, then sends crafted network traffic that causes Chrome to render spoofed or misleading UI elements. The victim, trusting the falsified interface, is deceived into taking an action (e.g., approving a connection or trusting displayed information). No public exploit code was provided, and success depends entirely on the victim's interaction.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 06, 2026

UI misrepresentation in the Chromoting (Chrome Remote Desktop) component of Google Chrome on Windows allows a remote, unauthenticated attacker to spoof interface elements by delivering crafted network traffic, provided the victim is socially engineered into interacting with the session. Only Windows installations of Chrome prior to 155.0.8059.39 are affected, and the outcome is limited to misleading the user (low confidentiality impact) rather than code execution or credential compromise. No public exploit code or confirmed active exploitation was identified at time of analysis, and the Chromium team rated the security severity as Low.

RemediationAI

Upgrade Google Chrome on Windows to 155.0.8059.39 or later via the browser's built-in update mechanism or the stable channel release referenced at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html; vendor-released patch version 155.0.8059.39 addresses the issue, and details are tracked at https://issues.chromium.org/issues/556259957. Where immediate upgrading is not possible, reduce the exposure surface by disabling or uninstalling the Chromoting host component and the Chrome Remote Desktop extension on managed Windows endpoints (side effect: remote support and remote-desktop workflows become unavailable, so a sanctioned alternative such as the enterprise remote access tool must be designated), and restrict outbound/inbound remoting traffic to approved relay and host endpoints via firewall or proxy policy (side effect: legitimate off-network remote sessions may break and require allowlisting). Because exploitation depends on social engineering plus user interaction (UI:R), reinforce user awareness training against unsolicited remote-session invitations and unexpected remote-desktop prompts, and consider enterprise policy to require explicit user confirmation before accepting remoting connections; note that these are compensating controls only and do not remove the underlying UI spoofing defect.

Affected VersionsENISA

Chrome 155.0.8059.39 <155.0.8059.39

Affected Packages

euvd chrome fix: 155.0.8059.39

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a CWE-451 user interface misrepresentation issue inside Chromoting, the remoting protocol and host/client implementation that underpins Chrome Remote Desktop. Because Chromoting renders remote desktop content and session chrome within the browser, crafted network traffic on the remoting channel can cause the UI to present information that does not correspond to the real session state, enabling spoofing of interface elements. The affected product is captured by the generic CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, but the vendor advisory and EUVD data scope the defect specifically to the Chromoting feature on Windows prior to 155.0.8059.39. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L (as published) reflects a network-reachable, unauthenticated attack that nevertheless requires victim interaction; our independent assessment narrows the impact further and drops the availability component, leaving CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. Root cause is a failure to faithfully represent session/UI state, not a memory-safety or privilege boundary defect.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (Chrome) PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
vuln.today AI 4.3 MEDIUM

Network-reachable crafted traffic (AV:N/AC:L/PR:N) but mandatory victim interaction (UI:R); impact is limited deception/disclosure (C:L), with no integrity or availability effect justified for a pure UI-spoofing flaw.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Red Hat 4.3 LOW

Primary rating from Vendor (Chrome).

CVSS VectorVendor: Chrome

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

Lifecycle Timeline

4
CVSS changed
Oct 06, 2026 - 21:22 NVD
5.4 (MEDIUM)
Patch available
Oct 06, 2026 - 20:04 EUVD
CVE Published
Oct 06, 2026 - 18:41 cve.org
UNKNOWN (no severity yet)
CVE Published
Oct 06, 2026 - 18:41 cve.org
MEDIUM 5.4

DescriptionCVE.org

UI misrepresentation in Chromoting in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to potentially spoof UI elements via crafted network traffic. (Chromium security severity: Low)

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
Ubiquitous
Chrome installed almost everywhere; Chromoting remote-desktop feature used by a subset
Data Quality
7 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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Vendor StatusVendor

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