CVE-2017-20285
CVE-2017-20285
- Critical
- CVSS 9.1
- EPSS 0.34%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| YAML | before 1.30 | 1.30 |
Advisories and fixes
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.1 (v3.1, scored by CISA-ADP)
- EPSS
- 0.34% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 25, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: yes. Technical impact: total. As of Oct 6, 2026.
- Weakness
- CWE-502: Deserialization of Untrusted Data; CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.