Security readout for executives and security teams
Plain-English summary
CVE-2026-11645 is a high-severity Google Chrome V8 flaw that can let an attacker run code in Chrome’s sandbox when a user opens a crafted HTML page. CISA lists it as known exploited, so this is not just theoretical. Organizations should prioritize rapid Chrome updates.
Executive priority
Treat as urgent. CISA KEV listing means defenders should assume real-world exploitation risk. Rapid enterprise-wide Chrome patching is the main business action to reduce exposure.
Technical view
The flaw is an out-of-bounds read and write in V8, mapped to CWE-125 and CWE-787. Chrome versions prior to 149.0.7827.103 are affected. The CVSS 3.1 score is 8.8: network attack vector, low complexity, no privileges required, user interaction required, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is likely on managed or unmanaged desktop systems running Google Chrome below 149.0.7827.103. Risk depends on users encountering attacker-controlled or compromised web content. The source bundle does not identify other Chromium-based browsers as affected.
Exploitation context
CISA KEV status supports known exploitation. The CVE describes exploitation through a crafted HTML page, requiring user interaction but no attacker privileges. The available sources do not provide exploitation scale, targets, indicators of compromise, or whether a sandbox escape is involved.
Researcher notes
Public technical detail is limited. The Chromium issue may restrict access, and the bundle does not include root-cause analysis, indicators, or exploit details. Avoid assuming impact beyond Chrome sandbox code execution unless later vendor guidance confirms more.
Mitigation direction
- Update Google Chrome desktop to 149.0.7827.103 or later.
- Use enterprise browser management to enforce the update quickly.
- Prioritize internet-facing and high-risk user groups first.
- Check Google’s Chrome release guidance for rollout details.
- If patching is delayed, reduce exposure to untrusted web content.
Validation and detection
- Inventory Chrome versions across managed endpoints.
- Confirm installed Chrome is 149.0.7827.103 or later.
- Check browser management consoles for update compliance.
- Review CISA KEV entry for remediation expectations.
- Monitor Google Chrome release notes for follow-up updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-11645 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2026-11645 added to CISA KEV
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-06-09T00:00:00.000Z: CVE-2026-11645 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.htmlCVE reference, Chrome
- https://issues.chromium.org/issues/506689381CVE reference, Chrome
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-11645CVE reference, CISA-ADP · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.