What is CVE-2021-36163?

CVE-2021-36163 is a critical-severity vulnerability in Apache Dubbo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-09-07.

How severe is CVE-2021-36163?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-36163 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Dubbo

CVE-2021-36163

In Apache Dubbo, users may choose to use the Hessian protocol. The Hessian protocol is implemented on top of HTTP and passes the body of a POST request directly to a HessianSkeleton: New HessianSkeleton are created without any configuratio…

Vulnerability class: Insecure Deserialization

EPSS: 0.028 (84.8th percentile) — read the EPSS interpretation.

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.

Affected products

Apache Dubbo
Apache Software Foundation Dubbo — versions Apache Dubbo 2.7.x, Apache Dubbo 2.6.x

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36163?: CVE-2021-36163 is a critical-severity vulnerability in Apache Dubbo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-09-07.
How severe is CVE-2021-36163?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-36163 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.