Security readout for executives and security teams
Older Git clients can be abused when a user connects to a malicious Git server, or when traffic is modified in transit. The reported outcomes range from terminal disruption to possible remote code execution. The bundle does not provide CVSS, a confirmed fixed version, or evidence of active exploitation. Exposure is most plausible on systems running Git 2.15.1 or earlier that clone, fetch, or otherwise interact with untrusted repositories or network paths susceptible to traffic modification. Treat this as a targeted developer-tooling risk, not a confirmed mass-exploitation emergency. Prioritize environments using very old Git clients with external repository access or weak network trust controls. Mitigation focus: Inventory Git client versions across workstations, servers, and CI runners.; Check official Git or OS vendor guidance for fixed versions and updates.; Prioritize remediation where users access untrusted Git servers..
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.
Execution 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-2018-1000021 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
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.