CVE-2025-46417Public exploit

Local file disclosure via incomplete module denylist

Published Apr 24, 2025 · Updated Apr 24, 2025

Information disclosure in Matthieu Maitre picklescan before 0.0.25 allows context-dependent attackers to exfiltrate local files via DNS. The scanner denylist omits the ssl and linecache modules, so a crafted pickle passes inspection while linecache reads a local file and ssl.get_server_certificate embeds its contents in attacker-controlled DNS queries. Exploitation requires a downstream process to deserialize the attacker-supplied pickle; disclosure is limited to files readable by that process.

CVSS severity6.8
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Matthieu Maitre picklescan before 0.0.25 allows context-dependent attackers to exfiltrate local files via DNS. The scanner denylist omits the ssl and linecache modules, so a crafted pickle passes inspection while linecache reads a local file and ssl.get_server_certificate embeds its contents in attacker-controlled DNS queries. Exploitation requires a downstream process to deserialize the attacker-supplied pickle; disclosure is limited to files readable by that process.

The record

CVE
CVE-2025-46417
Published
Apr 24, 2025
Updated
Apr 24, 2025
Vendor
Matthieu Maitre
Product
picklescan
Classifications
CWE-184, T1048.003
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.0.25

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Matthieu Maitre · picklescanversion=0 <0.0.25

Published CVSS scores

6.8MITRECVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
T1048.003Exfiltration Over Unencrypted Non-C2 Protocol

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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