CVE-2021-27213
CRITICALCVSS 9.8/10EPSS 2.61%
Last modified
CVE-2021-27213 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. config.py in pystemon before 2021-02-13 allows code execution via YAML deserialization because SafeLoader and safe_load are not used.. EPSS estimates a 2.61% chance of exploitation in the next 30 days.
Description
config.py in pystemon before 2021-02-13 allows code execution via YAML deserialization because SafeLoader and safe_load are not used.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pystemon Project | Pystemon | < 2021-02-13 |
References
- https://github.com/cvandeplas/pystemon/commit/dbeb87afefdb63de2f4cff69b6f10c5965d14b54Patch, Third Party Advisory
- https://www.huntr.dev/bounties/1-other-pystemon/Exploit, Third Party Advisory
- https://github.com/cvandeplas/pystemon/commit/dbeb87afefdb63de2f4cff69b6f10c5965d14b54Patch, Third Party Advisory
- https://www.huntr.dev/bounties/1-other-pystemon/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27213?
config.py in pystemon before 2021-02-13 allows code execution via YAML deserialization because SafeLoader and safe_load are not used.
How severe is CVE-2021-27213?
CVE-2021-27213 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.61% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27213?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-27213?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST