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Full vulnerability report · 2026
CVE-2026-48561High confidence

Microsoft Edge Copilot Remote Code Execution Vulnerability

Microsoft · Microsoft Edge Copilot for Android

9.6CriticalCVSS 3.1
Recommended action
Within 7 days

Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
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-2026-43965

No EUVD known-exploited evidence

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.

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
9.6 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.

What

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.

Why

Untrusted input reaches a command interpreter without sufficient validation or separation from command syntax.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.

Why

Untrusted input reaches a command interpreter without sufficient validation or separation from command syntax.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

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 → Improper Neutralization of Special Elements used in a Command ('Command Injection') → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-77 ↗

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'). The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

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:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-77
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-43965Official EUVD mapping

Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2320Microsoft Windows Terminal, 365 Copilot, Github Copilot: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Terminal, 365 Copilot und Github Copilotausnutzen, um beliebigen Programmcode auszuführen, um falsche Informationen darzustellen und um seine Privilegien zu erhöhen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260715Security Bulletin 15 Jul 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 Jul 2026, published on 15 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0868Multiples vulnérabilités dans Microsoft Office

x RSS des bulletins d'actualité Premier Ministre S.G.D.S.N Agence nationale de la sécurité des systèmes d'information Paris, le 15 juillet 2026 N° CERTFR-2026-AVI-0868 Affaire suivie par: CERT-FR Avis du CERT-FR Objet: Multiples vulnérabilités dans Microsoft Office Gestion du document Référence CERTFR-2026-AVI-0868 Titre Multiples vulnérabilités dans Microsoft Office Date de la première version 15 juillet 2026 Date de la dernière version 15 juillet 2026 Source(s) Bulletin de sécurité Microsoft Office CVE-2026-47290 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-47642 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-48561 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-48580 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50301 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50314 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50387 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50408 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50467 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50665 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50675 du 14 juillet 2026 Bulletin de sécurité Microsoft Office CVE-2026-50678 d

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-22Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-49171 : apre una nuova finestra - - CVE-2026-49170 : apre una nuova finestra - - CVE-2026-49169 : apre una nuova finestra - - CVE-2026-49168 : apre una nuova finestra - - CVE-2026-49167 : apre una nuova finestra - - CVE-2026-49166 : apre una nuova finestra - - CVE-2026-49165 : apre una nuova finestra - - CVE-2026-49164 : apre una nuova finestra - - CVE-2026-49162 : apre una nuova finestra - - CVE-2026-48581 : apre una nuova finestra - - CVE-2026-48580 : apre una nuova finestra - - CVE-2026-48572 : apre una nuova finestra - - CVE-2026-48571 : apre una nuova finestra - - CVE-2026-48564 : apre una nuova finestra - - CVE-2026-48561 : apre una nuova finestra - - CVE-2026-47642 : apre una nuova finestra - - CVE-2026-47632 : apre una nuova finestra - - CVE-2026-47305 : apre una nuova finestra - - CVE-2026-47304 : apre una nuova finestra - - CVE-2026-47303 : apre una nuova finestra - - CVE-2026-47302 : apre una nuova finestra - - CVE-2026-47301 : apre una nuova finestra Presente - CVE-2026-47300 : apre una nuova finestra - - CVE-2026-47296 : apre una nuova finestra - - CVE-2026-47295 : apre una nuova finestra - - CVE-2026-47290 : apre una nuova finestra - - CVE-2026-47282 : apre una nuova finestra - - CVE-2026-45646 : apre una nuova finestra - - CVE-2026-45499 : apre una n

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-024160マイクロソフトのMicrosoft 365 Copilotにおけるコマンドインジェクションの脆弱性

Microsoft Copilot におけるコマンドで使用される特殊要素が不適切に無害化される（「コマンドインジェクション」）ため、不正な攻撃者がネットワーク経由でコードを実行できる可能性があります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6882MS 7월 보안 위협에 따른 정기 보안 업데이트 권고

2026-47303 | ASP.NET Core 권한 상승 취약성 | | .NET | CVE-2026-47302 | .NET 서비스 거부 취약성 | | ASP.NET Core | CVE-2026-47300 | ASP.NET Core 권한 상승 취약성 | | Windows Bluetooth Port Driver | CVE-2026-42975 | Windows Bluetooth 포트 드라이버 원격 코드 실행 | | Microsoft Windows App Store | CVE-2026-42900 | Microsoft Windows App Store 권한 상승 취약성 | | Windows Ancillary Function Driver for WinSock | CVE-2026-34346 | WinSock용 Windows 보조 기능 드라이버 정보 유출 취약성 | | Windows Media | CVE-2026-34349 | Windows Media 정보 공개 취약성 | | SQL Server | CVE-2026-47296 | Microsoft SQL Server 권한 상승 취약성 | | Windows Secure Kernel Mode | CVE-2026-42982 | Windows 보안 커널 모드 권한 상승 취약성 | | Microsoft Copilot | CVE-2026-48561 | Microsoft Copilot 원격 코드 실행 취약성 | | Microsoft Edge (Chromium-based) | CVE-2026-14428 | Insufficient validation of untrusted input in Dawn | | Microsoft Edge (Chromium-based) | CVE-2026-14382 | Insufficient validation of untrusted input in ANGLE | | Microsoft Edge (Chromium-based) | CVE-2026-14126 | Incorrect security UI in UI | | Microsoft Edge (Chromium-based) | CVE-2026-14114 | Inappropriate implementation in WebAppInstalls | | Microsoft Edge (Chromium-based) | CVE-2026-14096 | Object lifecycle issue in Input | | Microsoft Edge (Chromium-based) | CVE-2026-14005 | Use after free in Omnibox | | Microsoft Edge (Chromium-based) | CVE-2026-139

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.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
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 Jul 2026 · Last source change 28 Aug 2026, 17:49 UTC · CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVE recordCVE.org · 5.2
CVSS sourceCNA
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-2026-43965
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    1.0.0 < publication · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Microsoft Edge Copilot for Android: 1.0.0 < publication; Microsoft Edge Copilot for IOS: 1.0.0 < publication · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2026-43965↗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-2026-48561 · cve.blacktree.nl