9.8

CVE-2021-36163: apache software foundation apache dubbo Deserialization of Untrusted Data

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-cpx9-4rwv-486v
Published 07-09-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-36163 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in apache software foundation apache dubbo. EPSS estimates a 3.25% chance of exploitation in the next 30 days, higher than 88.1% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
3.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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 configuration of the serialization factory and therefore without applying the dubbo properties for applying allowed or blocked type lists. In addition, the generic service is always exposed and therefore attackers do not need to figure out a valid service/method name pair. This is fixed in 2.7.13, 2.6.10.1

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.25%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.25% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • dubbo≥ 2.7.0, ≤ 2.7.12 | ≥ 3.0.0, ≤ 3.0.1
Apache software foundation1 product
  • apache dubbo≥ Apache Dubbo 2.7.x, ≤ 2.7.12 | ≥ Apache Dubbo 2.6.x, ≤ 2.6.10
Org.apache.dubbo1 product
  • dubbo≥ 2.7.0, < 2.7.13 | < 2.6.10.1

3 vendors · 3 products

References

6 links