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Full vulnerability report · 2025
CVE-2025-3070High confidence

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page

Google · Chrome

6.5MediumCVSS 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-2025-9504

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

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

What

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.

What

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.

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 Input Validation → gain additional privileges
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
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-20

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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:N/S:U/C:L/I:L/A:N

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.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
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.
NetworkUnauthenticatedPrivilege escalationCWE-20
A

Official authority intelligence

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

BSI · German · WID-SEC-2025-0673Google Chrome/Microsoft Edge: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Chrome/Microsoft Edge ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20250409Security Bulletin 09 April 2025 [903 KB]

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 09 April 2025 [903 KB], published on 9 April 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0410Multiples vulnérabilités dans les produits Palo Alto Networks

.cve.org/CVERecord?id=CVE-2025-0134 Référence CVE CVE-2025-0135 https://www.cve.org/CVERecord?id=CVE-2025-0135 Référence CVE CVE-2025-0136 https://www.cve.org/CVERecord?id=CVE-2025-0136 Référence CVE CVE-2025-0137 https://www.cve.org/CVERecord?id=CVE-2025-0137 Référence CVE CVE-2025-0138 https://www.cve.org/CVERecord?id=CVE-2025-0138 Référence CVE CVE-2025-3066 https://www.cve.org/CVERecord?id=CVE-2025-3066 Référence CVE CVE-2025-3067 https://www.cve.org/CVERecord?id=CVE-2025-3067 Référence CVE CVE-2025-3068 https://www.cve.org/CVERecord?id=CVE-2025-3068 Référence CVE CVE-2025-3069 https://www.cve.org/CVERecord?id=CVE-2025-3069 Référence CVE CVE-2025-3070 https://www.cve.org/CVERecord?id=CVE-2025-3070 Référence CVE CVE-2025-3071 https://www.cve.org/CVERecord?id=CVE-2025-3071 Référence CVE CVE-2025-3072 https://www.cve.org/CVERecord?id=CVE-2025-3072 Référence CVE CVE-2025-3073 https://www.cve.org/CVERecord?id=CVE-2025-3073 Référence CVE CVE-2025-3074 https://www.cve.org/CVERecord?id=CVE-2025-3074 Référence CVE CVE-2025-3619 https://www.cve.org/CVERecord?id=CVE-2025-3619 Référence CVE CVE-2025-3620 https://www.cve.org/CVERecord?id=CVE-2025-3620 Référence CVE CVE-2025-4050 https://www.cve.org/CVERecord?id=CVE-2025-4050 Référence CVE CVE-2025-4051 https://www.cve.org/CVERecord?id=CVE-2025-4051 Ré

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0275Multiples vulnérabilités dans Microsoft Edge

De multiples vulnérabilités ont été découvertes dans Microsoft Edge. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0265Multiples vulnérabilités dans Google Chrome

De multiples vulnérabilités ont été découvertes dans Google Chrome. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-003007Google の Google Chrome における入力確認に関する脆弱性

Google の Google Chrome には、入力確認に関する脆弱性、指定されたタイプの入力に対する不適切な検証に関する脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6441MS 4월 보안 위협에 따른 정기 보안 업데이트 권고

rc.microsoft.com/update-guide/ko-kr/ [2] (영문) https://msrc.microsoft.com/update-guide/en-us/ [3] https://msrc.microsoft.com/update-guide/ko-kr/releaseNote/2025-Apr o 취약점 요약 정보 (총 157개) | 제품 카테고리 | CVE 번호 | CVE 제목 | | --- | --- | --- | | Microsoft Edge (Chromium-based) | CVE-2025-3074 | Chromium: CVE-2025-3074 다운로드에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3073 | Chromium: CVE-2025-3073 자동 채우기에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3072 | Chromium: CVE-2025-3072 사용자 지정 탭에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3071 | Chromium: CVE-2025-3071 탐색에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3070 | Chromium: CVE-2025-3070 Extensions에서 신뢰할 수 없는 입력에 대한 불충분한 유효성 검사 | | Microsoft Edge (Chromium-based) | CVE-2025-3069 | Chromium: CVE-2025-3069 확장에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3068 | Chromium: CVE-2025-3068 Intents에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3067 | Chromium: CVE-2025-3067 사용자 지정 탭에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2025-3066 | Chromium: CVE-2025-3066 탐색에서 UaF(Use after free) | | Windows Common Log File System Driver | CVE-2025-29824 | Windows 공용 로그 파일 시스템 드라이버 권한 상승 취약성 | | Microsoft Office Excel | CVE-2025-29823 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office On

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
Chrome: 135.0.7049.52 < 135.0.7049.52
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 2 Apr 2025 · Last source change 3 Apr 2025, 17:49 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.1
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-2025-9504
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
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
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-2025-3070 · cve.blacktree.nl