PatchTheCVECVE-2021-38187: An issue was discovered in the anymap crate through 0.12.1 for Rust
CVE-2021-38187 is a critical-severity flaw (CVSS 9.8) affecting anymap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in the anymap crate through 0.12.1 for Rust. It violates soundness via conversion of a *u8 to a *u64.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.4% (top 27%) |
| CISA exploited list | No |
| Weakness | CWE-681 |
| Published | 2021-08-08 |
| 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-2021-38187?
anymap: upgrade to newer than 0.12.1. Exact commands for each OS are on this page.
Is CVE-2021-38187 being exploited?
CVE-2021-38187 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-2021-38187 affect?
CVE-2021-38187 affects anymap. Severity is critical (CVSS 9.8). An issue was discovered in the anymap crate through 0.12.1 for Rust. It violates soundness via conversion of a *u8 to a *u64.
How urgent is CVE-2021-38187?
Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action