CVE-2025-1945

Public Exploit
picklescan - Zip Flag Bit Exploit Crashes Picklescan But Not PyTorch

Description

picklescan before 0.0.23 fails to detect malicious pickle files inside PyTorch model archives when certain ZIP file flag bits are modified. By flipping specific bits in the ZIP file headers, an attacker can embed malicious pickle files that remain undetected by PickleScan while still being successfully loaded by PyTorch's torch.load(). This can lead to arbitrary code execution when loading a compromised model.

Category

5.3
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory github.com
Affected: mmaitre314 picklescan
Published at:
Updated at:

References

Link Tags
https://sites.google.com/sonatype.com/vulnerabilities/cve-2025-1945 third party advisory exploit
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-w8jq-xcqf-f792 vendor advisory exploit
https://github.com/mmaitre314/picklescan/commit/e58e45e0d9e091159c1554f9b04828bbb40b9781 patch

Frequently Asked Questions

What is the severity of CVE-2025-1945?
CVE-2025-1945 has been scored as a medium severity vulnerability.
How to fix CVE-2025-1945?
To fix CVE-2025-1945, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-1945 being actively exploited in the wild?
It is possible that CVE-2025-1945 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-1945?
CVE-2025-1945 affects mmaitre314 picklescan.
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