PatchTheCVECVE-2017-1000430: rust-base64 version <= 0.5.1 is vulnerable to a buffer overflow when calculating the size of a buffer to use w
CVE-2017-1000430 is a critical-severity flaw (CVSS 9.8) affecting rust-base64. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
rust-base64 version <= 0.5.1 is vulnerable to a buffer overflow when calculating the size of a buffer to use when encoding base64 using the 'encode_config_buf' and 'encode_config' functions
Why this priority
- Critical severity
- 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 | 1.5% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2018-01-02 |
| 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-2017-1000430?
rust-base64: upgrade to newer than 0.5.1. Exact commands for each OS are on this page.
Is CVE-2017-1000430 being exploited?
CVE-2017-1000430 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-2017-1000430 affect?
CVE-2017-1000430 affects rust-base64. Severity is critical (CVSS 9.8). rust-base64 version <= 0.5.1 is vulnerable to a buffer overflow when calculating the size of a buffer to use when encoding base64 using the 'encode_config_buf' and 'encode_config' functions
How urgent is CVE-2017-1000430?
Priority 58/100. Critical severity; Remotely exploitable, no login, no user action