Medium severity · published Dec 1, 2025
CVE-2025-13837
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues
5.5
CVSS
0.2%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
Python · Python
before 3.13.10; 3.14.0 before 3.14.1; 3.15.0; 3.15.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13837
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13837
github.com
https://github.com/python/cpython/commit/568342cfc8f002d9a15f30238f26b9d2e0e79036
Patch
https://github.com/python/cpython/commit/5a8b19677d818fb41ee55f310233772e15aa1a2b
Patch
https://github.com/python/cpython/commit/694922cf40aa3a28f898b5f5ee08b71b4922df70
Patch
https://github.com/python/cpython/commit/71fa8eb8233b37f16c88b6e3e583b461b205d1ba
Patch
https://github.com/python/cpython/commit/b64441e4852383645af5b435411a6f849dd1b4cb
github.com
https://github.com/python/cpython/commit/cefee7d118a26ef6cd43db59bb9d98ca9a331111
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