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Full vulnerability report · 2026
CVE-2026-8564High confidence

Incorrect security UI in Downloads in Google Chrome on Android and Mac prior to 148.0.7778.168 allowed a remote attacker to perform UI spoofing via a crafted HTML page

Google · Chrome

4.2MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-30377

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

Incorrect security UI in Downloads in Google Chrome on Android and Mac prior to 148.0.7778.168 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

What

Incorrect security UI in Downloads in Google Chrome on Android and Mac prior to 148.0.7778.168 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Why

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.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Incorrect security UI in Downloads in Google Chrome on Android and Mac prior to 148.0.7778.168 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Why

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.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → User Interface (UI) Misrepresentation of Critical Information → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-451 ↗

CWE-451: User Interface (UI) Misrepresentation of Critical Information. 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.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-451
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2026-1542Google Chrome und Microsoft Edge: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Chrome und Microsoft Edge ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, und um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0734Multiples vulnérabilités dans les produits Palo Alto Networks

.cve.org/CVERecord?id=CVE-2026-8555 Référence CVE CVE-2026-8556 https://www.cve.org/CVERecord?id=CVE-2026-8556 Référence CVE CVE-2026-8557 https://www.cve.org/CVERecord?id=CVE-2026-8557 Référence CVE CVE-2026-8558 https://www.cve.org/CVERecord?id=CVE-2026-8558 Référence CVE CVE-2026-8559 https://www.cve.org/CVERecord?id=CVE-2026-8559 Référence CVE CVE-2026-8560 https://www.cve.org/CVERecord?id=CVE-2026-8560 Référence CVE CVE-2026-8561 https://www.cve.org/CVERecord?id=CVE-2026-8561 Référence CVE CVE-2026-8562 https://www.cve.org/CVERecord?id=CVE-2026-8562 Référence CVE CVE-2026-8563 https://www.cve.org/CVERecord?id=CVE-2026-8563 Référence CVE CVE-2026-8564 https://www.cve.org/CVERecord?id=CVE-2026-8564 Référence CVE CVE-2026-8565 https://www.cve.org/CVERecord?id=CVE-2026-8565 Référence CVE CVE-2026-8566 https://www.cve.org/CVERecord?id=CVE-2026-8566 Référence CVE CVE-2026-8567 https://www.cve.org/CVERecord?id=CVE-2026-8567 Référence CVE CVE-2026-8568 https://www.cve.org/CVERecord?id=CVE-2026-8568 Référence CVE CVE-2026-8569 https://www.cve.org/CVERecord?id=CVE-2026-8569 Référence CVE CVE-2026-8570 https://www.cve.org/CVERecord?id=CVE-2026-8570 Référence CVE CVE-2026-8571 https://www.cve.org/CVERecord?id=CVE-2026-8571 Référence CVE CVE-2026-8572 https://www.cve.org/CVERecord?id=CVE-2026-8572 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0633Multiples vulnérabilités dans Microsoft Edge

lux RSS des alertes Flux RSS des menaces et incidents Flux RSS des avis Flux RSS des indicateurs de compromission Flux RSS des durcissement et recommandations Flux RSS des bulletins d'actualité Premier Ministre S.G.D.S.N Agence nationale de la sécurité des systèmes d'information Paris, le 22 mai 2026 N° CERTFR-2026-AVI-0633 Affaire suivie par: CERT-FR Avis du CERT-FR Objet: Multiples vulnérabilités dans Microsoft Edge Gestion du document Référence CERTFR-2026-AVI-0633 Titre Multiples vulnérabilités dans Microsoft Edge Date de la première version 22 mai 2026 Date de la dernière version 22 mai 2026 Source(s) Bulletin de sécurité Microsoft Edge CVE-2026-8564 du 15 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-8574 du 15 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-8583 du 15 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-8520 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-8521 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-8522 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-9110 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-9111 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-9112 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-9113 du 21 mai 2026 Bulletin de sécurité Microsoft Edge CVE-2026-9114

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0574Multiples vulnérabilités dans Google Chrome

.cve.org/CVERecord?id=CVE-2026-8555 Référence CVE CVE-2026-8556 https://www.cve.org/CVERecord?id=CVE-2026-8556 Référence CVE CVE-2026-8557 https://www.cve.org/CVERecord?id=CVE-2026-8557 Référence CVE CVE-2026-8558 https://www.cve.org/CVERecord?id=CVE-2026-8558 Référence CVE CVE-2026-8559 https://www.cve.org/CVERecord?id=CVE-2026-8559 Référence CVE CVE-2026-8560 https://www.cve.org/CVERecord?id=CVE-2026-8560 Référence CVE CVE-2026-8561 https://www.cve.org/CVERecord?id=CVE-2026-8561 Référence CVE CVE-2026-8562 https://www.cve.org/CVERecord?id=CVE-2026-8562 Référence CVE CVE-2026-8563 https://www.cve.org/CVERecord?id=CVE-2026-8563 Référence CVE CVE-2026-8564 https://www.cve.org/CVERecord?id=CVE-2026-8564 Référence CVE CVE-2026-8565 https://www.cve.org/CVERecord?id=CVE-2026-8565 Référence CVE CVE-2026-8566 https://www.cve.org/CVERecord?id=CVE-2026-8566 Référence CVE CVE-2026-8567 https://www.cve.org/CVERecord?id=CVE-2026-8567 Référence CVE CVE-2026-8568 https://www.cve.org/CVERecord?id=CVE-2026-8568 Référence CVE CVE-2026-8569 https://www.cve.org/CVERecord?id=CVE-2026-8569 Référence CVE CVE-2026-8570 https://www.cve.org/CVERecord?id=CVE-2026-8570 Référence CVE CVE-2026-8571 https://www.cve.org/CVERecord?id=CVE-2026-8571 Référence CVE CVE-2026-8572 https://www.cve.org/CVERecord?id=CVE-2026-8572 Ré

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
148.0.7778.168 < 148.0.7778.168
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 May 2026 · Last source change 14 May 2026, 21:25 UTC · CWE-451 · User Interface (UI) Misrepresentation of Critical Information

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-30377
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-30377↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-8564 · cve.blacktree.nl