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Full vulnerability report · 2026
CVE-2026-3909High confidence

Google Skia Out-of-Bounds Write Vulnerability

Google · Skia

8.8HighCVSS 3.1
Recommended action
Protect now

CISA confirms exploitation in the wild and lists 2026-03-27 as the remediation due date.

Fix not verified
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-3909 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitychromium-browser: skia: chromium-browser: skia: Out of bounds write in Skia
1 known not affected

The vendor explicitly states that these products are not affected by this CVE.

  • All currently supported Red Hat products
Summary
An out of bounds write flaw was found in the Skia component of the Chromium browser. Upstream bug(s): https://code.google.com/p/chromium/issues/detail?id=491421267
Remediation
No remediation text is recorded.
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-2026-11734

CISA KEV mirrored by ENISA

Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 13 Mar 2026. Evidence sources: cisa_kev.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
4 linked advisory records
Explicit mitigation evidence

Only statements that explicitly mention a fix, patch, update, workaround or mitigation are shown here.

  • csaf_ncscnl · NCSC-2026-0097Kwetsbaarheden verholpen in Google Chrome
  • csaf_opensuse · openSUSE-SU-2026:20372-1Security update for chromium
Recommended actionProtect now

CISA confirms exploitation in the wild and lists 2026-03-27 as the remediation due date.

Fix not verified
01

What, why and how

Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.

What

Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

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

Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2026-03-13.

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 → Out-of-bounds Write → 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
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-787

CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.

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:U/C:H/I:H/A:H

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.SUnchangedScope: The security impact remains within the vulnerable component's 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
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-787CISA KEV
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-11734Known-exploited evidence recorded

Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Official EUVD record
BSI · German · WID-SEC-W-2026-0723Google Chrome/Microsoft Edge: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Chrome/Microsoft Edge ausnutzen, um beliebigen Programmcode auszuführen und um weitere, nicht näher spezifizierte Auswirkungen zu erzielen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0412Multiples vulnérabilités dans les produits Palo Alto Networks

.cve.org/CVERecord?id=CVE-2026-3537 Référence CVE CVE-2026-3538 https://www.cve.org/CVERecord?id=CVE-2026-3538 Référence CVE CVE-2026-3539 https://www.cve.org/CVERecord?id=CVE-2026-3539 Référence CVE CVE-2026-3540 https://www.cve.org/CVERecord?id=CVE-2026-3540 Référence CVE CVE-2026-3541 https://www.cve.org/CVERecord?id=CVE-2026-3541 Référence CVE CVE-2026-3542 https://www.cve.org/CVERecord?id=CVE-2026-3542 Référence CVE CVE-2026-3543 https://www.cve.org/CVERecord?id=CVE-2026-3543 Référence CVE CVE-2026-3544 https://www.cve.org/CVERecord?id=CVE-2026-3544 Référence CVE CVE-2026-3545 https://www.cve.org/CVERecord?id=CVE-2026-3545 Référence CVE CVE-2026-3909 https://www.cve.org/CVERecord?id=CVE-2026-3909 Référence CVE CVE-2026-3910 https://www.cve.org/CVERecord?id=CVE-2026-3910 Référence CVE CVE-2026-3926 https://www.cve.org/CVERecord?id=CVE-2026-3926 Référence CVE CVE-2026-3927 https://www.cve.org/CVERecord?id=CVE-2026-3927 Référence CVE CVE-2026-3935 https://www.cve.org/CVERecord?id=CVE-2026-3935 Référence CVE CVE-2026-3936 https://www.cve.org/CVERecord?id=CVE-2026-3936 Référence CVE CVE-2026-3940 https://www.cve.org/CVERecord?id=CVE-2026-3940 Référence CVE CVE-2026-4464 https://www.cve.org/CVERecord?id=CVE-2026-4464 Référence CVE CVE-2026-4679 https://www.cve.org/CVERecord?id=CVE-2026-4679 Ré

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0303Vulnérabilité dans Microsoft Edge

Une vulnérabilité a été découverte dans Microsoft Edge. Elle permet à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur. Microsoft indique que la vulnérabilité CVE-2026-3909 est activement exploitée.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0286Multiples 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. Google indique que les vulnérabilités CVE-2026-3909 et CVE-2026-3910 sont activement exploitées.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0297Vulnérabilité dans Google Chrome

Une vulnérabilité a été découverte dans Google Chrome. Elle permet à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur. Google indique que la vulnérabilité CVE-2026-3909 est activement exploitée.

Official advisory
NCSC-NL · Dutch · NCSC-2026-0097Kwetsbaarheden verholpen in Google Chrome

A high-severity out-of-bounds write vulnerability in the Skia component of Google Chrome versions prior to 146.0.7680.75 allows remote attackers to access memory via crafted HTML pages.

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
146.0.7680.75 < 146.0.7680.75
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 12 Mar 2026 · Last source change 24 Mar 2026, 21:17 UTC · CWE-787 · Out-of-bounds Write

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
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-2026-11734
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-2026-3909 · cve.blacktree.nl