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Fencer Intel
critical 9.8

CVE-2021-43297 in the critical feed json

Dubbo Hessian cause RCE when parse error

published 4y ago modified 4mo ago also GHSA-vp5x-3v8r-qprw , EUVD-2022-0706

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.4%
EPSS 17.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

A deserialization vulnerability existed in dubbo hessian-lite 3.2.11 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protocol, during Hessian catch unexpected exceptions, Hessian will log out some imformation for users, which may cause remote command execution. This issue affects Apache Dubbo Apache Dubbo 2.6.x versions prior to 2.6.12; Apache Dubbo 2.7.x versions prior to 2.7.15; Apache Dubbo 3.0.x versions prior to 3.0.5.

Patch / fix

  • maven org.apache.dubbo:dubbo 2.6.12, 2.7.15, 3.0.5
  • Apache Software Foundation Apache Dubbo 2.6.12, 2.7.15, 3.0.5

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Exploit prediction

17.43% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.dubbo:dubbo
>=2.6.0, <2.6.12
>=2.7.0, <2.7.15
>=3.0.0, <3.0.5
2.6.12
2.7.15
3.0.5

Affected products

  • Apache Software Foundation Apache Dubbo

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.