Security readout for executives and security teams
Plain-English summary
Mintty versions before 3.4.7 have a flaw in how they handle Bracketed Paste Mode, a terminal feature used when pasting text. The public record does not explain the exact business impact or severity. Treat this as a workstation and developer-tool hygiene issue until vendor details clarify risk.
Executive priority
Handle through normal endpoint patch management unless Mintty is widely used by privileged users. The available evidence does not support emergency treatment, but the lack of severity detail means organizations should verify exposure and complete routine updates.
Technical view
CVE-2021-31701 affects Mintty before 3.4.7 and is described only as mishandling Bracketed Paste Mode. No CVSS score, CWE, exploit details, or impact class is provided in the supplied sources. The 3.4.7 release is the only referenced vendor source.
Likely exposure
Exposure is likely limited to systems running Mintty before version 3.4.7. This most likely affects users who rely on Mintty as an interactive terminal. The supplied sources do not identify specific operating systems, packaged distributions, or downstream bundles.
Exploitation context
The source bundle does not show active exploitation. The CVE is not listed as KEV, and no cited source provides exploit status. Because the technical impact is not described, exploitation likelihood and attacker value cannot be assessed from the supplied evidence.
Researcher notes
Public data is sparse: the record states only that Mintty before 3.4.7 mishandles Bracketed Paste Mode. There is no CVSS vector, CWE, detailed root cause, proof of exploitation, or explicit impact statement in the supplied sources.
Mitigation direction
- Upgrade Mintty to version 3.4.7 or later.
- Check Mintty release guidance for any additional vendor instructions.
- Prioritize managed developer and administrator workstations using Mintty.
- Track package-manager updates where Mintty is installed through managed software channels.
Validation and detection
- Inventory installed Mintty versions across managed endpoints.
- Confirm exposed systems run Mintty 3.4.7 or later.
- Review software management records for outdated Mintty packages.
- Monitor CVE and vendor release notes for severity clarification.
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-2021-31701 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://github.com/mintty/mintty/releases/tag/3.4.7CVE reference · x_refsource_MISC
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.