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CVE Record

CVE-2026-9911: Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to perform an...

Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: High)

MediumCVSS 4.3Not KEV-listed Updated
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Glexia's Take moderate

Analyst readout for executives and security teams

Plain-English summary

CVE-2026-9911 is a Chrome browser flaw in ANGLE, a graphics component. A malicious web page could trigger an out-of-bounds memory read. The reported impact is limited to confidentiality, not system takeover, but browsers are widely exposed and user interaction is only visiting a crafted page.

Executive priority

Treat this as a prompt browser patching item, not an emergency response trigger based on current evidence. Broad browser exposure and phishing-style delivery justify quick fleet validation, while lack of cited exploitation lowers immediate crisis urgency.

Technical view

The CVE describes an integer overflow in ANGLE in Google Chrome before 148.0.7778.216. Attack vector is network-based with low complexity, no privileges, and required user interaction. CVSS 3.1 is 4.3 with low confidentiality impact and no listed integrity or availability impact. Chromium rates the issue High.

Likely exposure

Exposure is likely wherever users run Google Chrome versions before 148.0.7778.216, especially managed desktop fleets. The source bundle does not establish exposure for other Chromium-based products, mobile platforms, or embedded ANGLE consumers.

Exploitation context

The bundle does not report active exploitation, and KEV is false. The described attack requires convincing a user to open or browse to a crafted HTML page. No exploit maturity, public proof of concept, or weaponized campaign is cited in the provided sources.

Researcher notes

Evidence is limited to the CVE record, Chrome release reference, and Chromium issue link. Do not infer broader ANGLE product impact from the component name alone. Validation should focus on version exposure and update completion rather than exploit reproduction.

Mitigation direction

  • Update Google Chrome to 148.0.7778.216 or later.
  • Prioritize managed desktops and high-risk user groups.
  • Confirm auto-update policies are functioning across Chrome fleets.
  • Review Google Chrome release guidance for platform-specific details.
  • Monitor vendor advisories and KEV for exploitation status changes.

Validation and detection

  • Inventory Chrome versions across managed endpoints.
  • Flag installations older than 148.0.7778.216.
  • Verify successful browser restart after update deployment.
  • Check enterprise update telemetry for failed or deferred updates.
  • Document exceptions and compensating controls for unmanaged systems.
Prepared
Confidence
high
Sources
4

Public sources used

Based on public source material and reviewed before publication.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

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cve · low confidence lookup

CVE-2026-9911 mapping review

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Vulnerability profile CVE Program record
Severity
Medium
CVSS
4.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1 CVSS vectors
3 Timeline events
1 ADP providers
3 Source links

SSVC decision data

CISA-ADP CISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

Score Version Severity Vector Exploit Impact Source
4.3 CVSS 3.1 Medium CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N 2.8 1.4 CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

4.3 Medium
CVSS 3.1 vector shape for CVE-2026-9911 Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reserved CVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE published CVE Program

    The CVE record was published.

  3. CVE updated CVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADP CISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

Vendor Product Version / package Status
Google Chrome 148.0.7778.216 Listed
Weakness

CWE details

CWE-472

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CWE-472 · source CWE mapping

CWE mapping pending import

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