PatchTheCVECVE-2021-28954: In Chris Walz bit before 1.0.5 on Windows, attackers can run arbitrary code via a .exe file in a crafted repos
CVE-2021-28954 is a high-severity flaw (CVSS 7.8) affecting bit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In Chris Walz bit before 1.0.5 on Windows, attackers can run arbitrary code via a .exe file in a crafted repository.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 38%) |
| CISA exploited list | No |
| Weakness | CWE-427 |
| Published | 2021-03-21 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-28954?
bit: upgrade to 1.0.5. Exact commands for each OS are on this page.
Is CVE-2021-28954 being exploited?
CVE-2021-28954 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-28954 affect?
CVE-2021-28954 affects bit. Severity is high (CVSS 7.8). In Chris Walz bit before 1.0.5 on Windows, attackers can run arbitrary code via a .exe file in a crafted repository.
How urgent is CVE-2021-28954?
Priority 43/100. High severity