CVE-2022-22965: Spring4Shell
CVE-2022-22965 (Spring4Shell) is a remote code execution (data binding) vulnerability in org.springframework:spring-beans (Maven). As of 2026-06-18 it carries a very high 99.7% probability of exploitation in the next 30 days (EPSS). It is fixed in 5.3.18 / 5.2.20 — if you depend on an earlier version, upgrade.
| Severity | Critical |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS (exploit probability, 30d) | 99.7% · 100th percentile |
| Vulnerability type | Remote Code Execution (data binding) |
| Affected package | org.springframework:spring-beans (Maven) |
| Fixed in | 5.3.18 / 5.2.20 |
What is CVE-2022-22965?
A Spring MVC/WebFlux application running on JDK 9+ with data binding can be tricked into writing a web shell via crafted request parameters, leading to remote code execution.
Is CVE-2022-22965 exploitable?
CVE-2022-22965 has an EPSS score of 99.7% (100th percentile), meaning a very high 99.7% probability of exploitation in the next 30 days. Its CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, which scores as Critical severity. It is a remote code execution (data binding) issue.
What is the EPSS score for CVE-2022-22965?
As of 2026-06-18, the EPSS exploit-prediction score for CVE-2022-22965 is 99.7% (100th percentile). EPSS estimates the probability that a vulnerability will be exploited in the wild within the next 30 days and is recomputed daily by FIRST.org.
How do I fix CVE-2022-22965?
Upgrade org.springframework:spring-beans to 5.3.18 / 5.2.20 or later. A Spring MVC/WebFlux application running on JDK 9+ with data binding can be tricked into writing a web shell via crafted request parameters, leading to remote code execution.
Am I affected by CVE-2022-22965?
You are affected if your project (directly or transitively) depends on a vulnerable version of org.springframework:spring-beans in the Maven ecosystem. Check your lockfile for the resolved version, or scan automatically with VulnFeed.
Check your own project automatically
Don't eyeball every dependency by hand. VulnFeed reads your lockfile, checks it against the same advisory data, and ranks findings by EPSS — free, no signup (10 scans/day):
curl -s https://vulnfeed-api.novadyne.ai/vulnscan/query \
-H 'content-type: application/json' \
-d '{"ecosystem":"npm","package":"PKG","version":"VERSION"}'
Or run it inside Claude Code with no API key — uvx vulnfeed-mcp — and just ask "scan this project for vulnerabilities."
Data sources: vulnerability metadata from OSV.dev and the National Vulnerability Database; exploit-probability (EPSS) from FIRST.org (recomputed daily; EPSS data shown here as of 2026-06-18). Page generated 2026-06-18.