Security readout for executives and security teams
Plain-English summary
This Samsung Dialer flaw lets a malicious local app or user launch Dialer activities with Samsung Dialer privileges. It affects Samsung Mobile Devices before the SMR Feb-2026 Release 1. The issue is high severity because it can impact confidentiality and integrity, but it requires local access or a local attacker context.
Executive priority
Treat as a high-priority mobile fleet patching item, especially for organizations allowing third-party apps. It is not currently supported by evidence of active exploitation, but the privilege boundary issue and high CVSS score justify timely remediation.
Technical view
CVE-2026-20983 is CWE-926: improper export of Android application components in Samsung Dialer. CVSS 4.0 is 8.4, with local attack vector, low complexity, low privileges, no user interaction, and high confidentiality and integrity impact. Samsung identifies the remediation point as SMR Feb-2026 Release 1 for Android 13, 14, and 15 devices.
Likely exposure
Exposure is limited to Samsung Mobile Devices running affected Samsung Dialer versions prior to SMR Feb-2026 Release 1. Organizations with managed Samsung Android 13, 14, or 15 fleets should prioritize checking patch level and update availability.
Exploitation context
The sources do not report active exploitation, and this CVE is not listed as CISA KEV in the provided data. Exploitation requires local attacker capability and low privileges, suggesting risk mainly from malicious installed apps or users with device access.
Researcher notes
Public details are limited to the CVE description, CVSS vector, CWE, and Samsung advisory reference. No proof-of-concept, exploit technique, or additional affected model list is included in the provided sources. Avoid assuming exposure beyond Samsung Mobile Devices before SMR Feb-2026 Release 1.
Mitigation direction
- Apply Samsung SMR Feb-2026 Release 1 or later where available.
- Prioritize managed Samsung Android 13, 14, and 15 devices.
- Restrict untrusted app installation on corporate Samsung devices.
- Check Samsung’s advisory for model-specific update availability.
Validation and detection
- Inventory Samsung devices and Android major versions.
- Verify each device security patch level against SMR Feb-2026 Release 1.
- Confirm Samsung Dialer is updated through the approved firmware channel.
- Review MDM compliance reports for outdated Samsung security maintenance releases.
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-926: 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 lookupCVE-2026-20983 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
- 8.4 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
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.
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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.4HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=02CVE reference
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 Export of Android Application Components
Improper Export of Android Application Components represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.