CVE-2025-71321
Last modified
CVE-2025-71321 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.
Description
picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-71321?
How severe is CVE-2025-71321?
How do I fix CVE-2025-71321?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-71316SQLite 'sqldiff.exe' does not securely handle the way the Mi…9.8
- CVE-2025-71317NetMan 204 contains a hard-coded backdoor account with the u…9.8
- CVE-2025-71318NetMan 204 fails to enforce authentication on its administra…9.8
- CVE-2025-71319image-size through 2.0.2 contains a denial of service vulner…8.7
- CVE-2025-7132A vulnerability was found in Campcodes Payroll Management Sy…9.8
- CVE-2025-71320picklescan before 0.0.33 contains an incomplete deny-list th…9.8
- CVE-2025-71322PickleScan before 0.0.33 fails to include the pty.spawn func…8.8
- CVE-2025-71323picklescan before 0.0.33 fails to block the ctypes module, a…9.8
- CVE-2025-71324Flowise before 3.0.6 contains an arbitrary file read vulnera…8.7
- CVE-2025-71325picklescan before 0.0.27 contains a parsing logic error in t…9.8
- CVE-2025-71326AVAST Antivirus 25.11 contains an unquoted service path vuln…8.5
- CVE-2025-71327Flowise contains an authentication bypass vulnerability in t…9.3
Are you affected by CVE-2025-71321?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST