Security readout for executives and security teams
Plain-English summary
A malicious webpage could exploit faulty input validation in Chrome on iOS versions before 152.0.7977.82, potentially running code beyond Chrome’s security sandbox. A victim must open the crafted page. Successful exploitation could seriously compromise data, system integrity, and availability.
Executive priority
Treat remediation as urgent because the supplied CVSS score is critical and successful exploitation could escape the browser sandbox. Expedite the iOS Chrome update, while recognizing that no active exploitation is documented in the provided sources.
Technical view
CVE-2026-85047 is a CWE-20 improper input-validation flaw in Chrome’s Transactions Platform on iOS. The supplied record describes remote, user-assisted arbitrary code execution outside the sandbox. CVSS 3.1 is 9.6 with scope change and high confidentiality, integrity, and availability impacts, although Chromium rates the issue Medium.
Likely exposure
Exposure is limited to Google Chrome on iOS earlier than 152.0.7977.82, according to the description. Users must encounter a crafted HTML page. The supplied affected-version field lists 152.0.7977.82 ambiguously, so organizations should confirm version interpretation against Google’s advisory.
Exploitation context
The source bundle does not identify active exploitation, and the CVE is not listed as KEV. Exploitation requires user interaction through a crafted webpage, but needs no privileges and is remotely reachable. No public exploit availability is established by the supplied evidence.
Researcher notes
The record contains notable inconsistencies: Chromium severity is Medium, while CVSS is 9.6 and the bundle labels severity critical. The affected array lists 152.0.7977.82, while the description says versions prior to it are vulnerable. One reference is titled as a desktop update despite the iOS-specific description. Confirm these details with Google.
Mitigation direction
- Update Chrome on iOS to version 152.0.7977.82 or later, subject to Google’s guidance.
- Prioritize managed and high-value devices that browse untrusted or externally supplied links.
- If updating is delayed, restrict risky browsing and direct users to avoid unexpected links.
- Review Google’s release notice and issue tracker for revised remediation or exposure details.
Validation and detection
- Inventory Chrome versions across managed iOS devices.
- Confirm no installed Chrome version is earlier than 152.0.7977.82.
- Verify mobile-device management reports successful rollout and no stale devices remain.
- Review Google’s advisory to resolve the supplied affected-version ambiguity.
- Monitor authoritative sources for exploitation-status changes.
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-20: 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-2026-85047 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
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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.
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:C/C:H/I:H/A:H2.86CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.htmlCVE reference, Chrome
- https://issues.chromium.org/issues/513790581CVE reference, Chrome
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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.