CVE-2022-35411

Name: CVE-2022-35411
Creator: NVD / NIST
Published: 2022-07-08T19:15:08.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 45.86%

Last modified Jun 17, 2026

CVE-2022-35411 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. rpc.py through 0.6.0 allows Remote Code Execution because an unpickle occurs when the "serializer: pickle" HTTP header is sent. In other words, although JSON (not Pickle) is the default data format, an unauthenticated client can cause the data to be processed with unpickle.. EPSS estimates a 45.86% chance of exploitation in the next 30 days.

Description

rpc.py through 0.6.0 allows Remote Code Execution because an unpickle occurs when the "serializer: pickle" HTTP header is sent. In other words, although JSON (not Pickle) is the default data format, an unauthenticated client can cause the data to be processed with unpickle.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

45.86%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Rpc.Py Project	Rpc.Py	>= 0.4.2, <= 0.6.0

References

http://packetstormsecurity.com/files/167872/rpc.py-0.6.0-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/abersheeran/rpc.py/commit/491e7a841ed9a754796d6ab047a9fb16e23bf8bdPatch, Third Party Advisory
https://github.com/ehtec/rpcpy-exploitExploit, Third Party Advisory
https://medium.com/%40elias.hohl/remote-code-execution-0-day-in-rpc-py-709c76690c30Exploit
http://packetstormsecurity.com/files/167872/rpc.py-0.6.0-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/abersheeran/rpc.py/commit/491e7a841ed9a754796d6ab047a9fb16e23bf8bdPatch, Third Party Advisory
https://github.com/ehtec/rpcpy-exploitExploit, Third Party Advisory
https://medium.com/%40elias.hohl/remote-code-execution-0-day-in-rpc-py-709c76690c30Exploit

Timeline

Published: Jul 8, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35411?

How severe is CVE-2022-35411?

CVE-2022-35411 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 45.86% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35411?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-35411?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST