CVE-2025-71463

Scapy before 2.7.0 Insecure Deserialization RCE via Session Files

Published Nov 13, 2026 CVSS 4.0 · 5.4 Medium EPSS n/a KEV · Not listed

Description

Scapy before 2.7.0 contains an insecure deserialization vulnerability in the load_session function that allows attackers to execute code by supplying a malicious pickle session file. Attackers can trick users into loading a crafted .pkl.gz file via the -s option or conf.session, executing embedded Python code through __reduce__().

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

secdev

scapy

unaffected

Version	Status	Constraints
`0`	affected	< 2.7.0
`2.7.0`	unaffected	—

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/secdev/scapy/security/advisories/GHSA-cq46-m9x9-j8w2
https://www.vulncheck.com/advisories/scapy-before-2.7.0-insecure-deserialization-rce-via-session-files

History

Nov 13, 2026 9:45 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Scapy before 2.7.0 contains an insecure deserialization vulnerability in the load_session function that allows attackers to execute code by supplying a malicious pickle session file. Attackers can trick users into loading a crafted .pkl.gz file via the -s option or conf.session, executing embedded Python code through __reduce__().
Title		Scapy before 2.7.0 Insecure Deserialization RCE via Session Files
First Time appeared		Scapy Scapy scapy
Weaknesses		CWE-502
CPEs		cpe:2.3:a:scapy:scapy::::::::
Vendors & Products		Scapy Scapy scapy
References		https://github.com/secdev/scapy/security/advisories/GHSA-cq46-m9x9-j8w2 https://www.vulncheck.com/advisories/scapy-before-2.7.0-insecure-deserialization-rce-via-session-files
Metrics		cvssV3_1 `{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}` cvssV4_0 `{'score': 5.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`