Deserialization in Apache Storm
CVE-2021-40865
An Unsafe Deserialization vulnerability exists in the worker services of the Apache Storm supervisor server allowing pre-auth Remote Code Execution (RCE). Apache Storm 2.2.x users should upgrade to version 2.2.1 or 2.3.0. Apache Storm 2.1.x users should upgrade to version 2.1.1. Apache Storm 1.x users should upgrade to version 1.2.4
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.642 (99.2th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.642 · newest: 0.642 · change: 0.000
Affected products
- Apache Storm
- Apache Software Foundation Storm — versions v1.0.0, Apache Storm
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r8d45e74299897b6734dd0f788c46a631009ce2eeb73152338… (Mailing List, Vendor Advisory)
- seclists.org/oss-sec/2021/q4/45 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40865?
- CVE-2021-40865 is a critical-severity vulnerability in Apache Storm, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-10-25.
- How severe is CVE-2021-40865?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-40865 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.