Security readout for executives and security teams
Plain-English summary
Mattermost Desktop App versions before 3.4.0 had a string injection issue where text could be executed as code. The sources do not provide severity, exploit details, prerequisites, or confirmed impact. Organizations should focus on finding any legacy desktop clients and moving them off affected versions.
Executive priority
Prioritize as a legacy client hygiene issue unless affected desktop installations are found. If pre-3.4.0 clients exist, remediate promptly because the described flaw involves potential code execution.
Technical view
CVE-2016-11064 affects Mattermost Desktop App before 3.4.0. The public description says strings could be executed as code via injection. No CVSS, CWE, detailed attack vector, or affected platform list is provided in the bundle, so exposure validation depends on version inventory and vendor guidance.
Likely exposure
Exposure is limited to environments still running Mattermost Desktop App versions earlier than 3.4.0. The bundle does not identify affected operating systems, deployment models, or server-side Mattermost components.
Exploitation context
The source bundle does not show active exploitation, and the CVE is not marked as CISA KEV. Public details are too sparse to assess exploit maturity or required user interaction.
Researcher notes
The public record is unusually thin: no CVSS, CWE, detailed vector, exploit status, or fix advisory text is included beyond the before-3.4.0 version boundary. Avoid assuming server impact or active exploitation without additional vendor evidence.
Mitigation direction
- Inventory Mattermost Desktop App versions across managed endpoints.
- Upgrade installations older than 3.4.0 to a vendor-supported version.
- Review Mattermost security updates for any product-specific guidance.
- Remove unsupported or unmanaged legacy desktop clients where upgrade is not possible.
Validation and detection
- Confirm whether Mattermost Desktop App is installed on endpoints.
- Check installed client versions and flag anything before 3.4.0.
- Verify upgraded endpoints report a non-affected supported version.
- Document any unknown or unmanaged desktop installations for follow-up.
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.
CVE-2016-11064 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://mattermost.com/security-updates/CVE reference · x_refsource_CONFIRM
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.