Security readout for executives and security teams
Plain-English summary
A flaw in Android font-smoothing code could allow an attacker to run code remotely without credentials or user action. Successful exploitation could compromise device confidentiality, integrity, and availability. The supplied data identifies Android 14, 15, 16, 16-qpr2, and 17 as affected.
Executive priority
Treat this as an urgent remediation item because the documented impact is unauthenticated remote code execution with potentially complete device compromise. Quickly identify affected devices, confirm vendor update availability, and escalate unsupported or unpatchable assets.
Technical view
CVE-2026-58822 is a CWE-704 improper-casting issue affecting multiple functions in ftsmooth.c. The resulting memory-safety failure may permit remote code execution. Its CVSS 3.1 score is 9.8, with network access, low attack complexity, no privileges, and no user interaction indicated.
Likely exposure
Devices running the explicitly listed Android releases may be exposed where attacker-controlled data can reach the vulnerable code. The supplied sources do not identify exact builds, reachable interfaces, or affected device vendors. Versions outside the listed set have a default status of unaffected.
Exploitation context
The severity data describes unauthenticated, low-complexity, network-based exploitation without user interaction. However, the source bundle does not establish exploitation in the wild, and the CVE is not identified as being in KEV. No public exploit evidence is supplied.
Researcher notes
The available record attributes the issue to improper casting across multiple ftsmooth.c functions. It does not provide vulnerable call paths, patch commits, fixed build identifiers, detection indicators, or exploitation telemetry. Exposure conclusions should therefore remain conditional until the Android bulletin and device-vendor advisories are reviewed.
Mitigation direction
- Review the Android September 2026 security bulletin for applicable updates and device-specific guidance.
- Prioritize updates for internet-connected or high-value devices running listed Android versions.
- Use compensating network restrictions where affected devices cannot be promptly updated.
- Request remediation timelines from device vendors when security updates are unavailable.
Validation and detection
- Inventory devices and identify those running Android 14, 15, 16, 16-qpr2, or 17.
- Compare installed security patch levels against the Android bulletin and device-vendor guidance.
- Confirm updates remain installed after deployment and device restart.
- Document devices without available fixes and verify compensating controls are enforced.
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-704: 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-2026-58822 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
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.
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:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.
- 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://source.android.com/docs/security/bulletin/2026/2026-09-01CVE reference, google_android
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.
Incorrect Type Conversion or Cast
Incorrect Type Conversion or Cast represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.