PatchTheCVECVE-2021-38451: The affected product’s proprietary protocol CSC allows for calling numerous function codes
CVE-2021-38451 is a medium-severity flaw (CVSS 4.8) affecting versiondog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The affected product’s proprietary protocol CSC allows for calling numerous function codes. In order to call those function codes, the user must supply parameters. There is no sanitation on the value of the offset, which allows the client to specify any offset and read out-of-bounds data.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.7% (top 48%) |
| CISA exploited list | No |
| Weakness | CWE-125 |
| Published | 2021-10-22 |
| 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-2021-38451?
versiondog: upgrade to 8.0.0. Exact commands for each OS are on this page.
Is CVE-2021-38451 being exploited?
CVE-2021-38451 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-2021-38451 affect?
CVE-2021-38451 affects versiondog. Severity is medium (CVSS 4.8). The affected product’s proprietary protocol CSC allows for calling numerous function codes. In order to call those function codes, the user must supply parameters. There is no sanitation on the value of the offset, which allows the client t
How urgent is CVE-2021-38451?
Priority 30/100. No elevated risk signals yet.
Related CVEs
- CVE-2021-38481 HIGH 8.1 UPGRADE The scheduler service running on a specific TCP port enables the user to start and stop jobs
- CVE-2021-38479 MEDIUM 6.5 UPGRADE Many API function codes receive raw pointers remotely from the user and trust these pointers as valid in-bound
- CVE-2021-38477 CRITICAL 9.8 UPGRADE There are multiple API function codes that permit reading and writing data to or from files and directories, w
- CVE-2021-38475 HIGH 7.3 UPGRADE The database connection to the server is performed by calling a specific API, which could allow an unprivilege
- CVE-2021-38473 HIGH 8.0 UPGRADE The affected product’s code base doesn’t properly control arguments for specific functions, which could lead t