CVE-2025-13837
Low
No strong exploitation signal.
CVSS base
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.2%
13.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-400
Published 2025-12-01 · modified 2026-09-03
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2025-12-01 — Published (NVD)
- 2026-09-03 — Last modified (NVD)
Description
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
Affected
References
- https://github.com/python/cpython/commit/568342cfc8f002d9a15f30238f26b9d2e0e79036
- https://github.com/python/cpython/commit/5a8b19677d818fb41ee55f310233772e15aa1a2b
- https://github.com/python/cpython/commit/694922cf40aa3a28f898b5f5ee08b71b4922df70
- https://github.com/python/cpython/commit/71fa8eb8233b37f16c88b6e3e583b461b205d1ba
- https://github.com/python/cpython/commit/b64441e4852383645af5b435411a6f849dd1b4cb
- https://github.com/python/cpython/commit/cefee7d118a26ef6cd43db59bb9d98ca9a331111
- https://github.com/python/cpython/issues/119342
- https://github.com/python/cpython/pull/119343
- https://mail.python.org/archives/list/security-announce@python.org/thread/2X5IBCJXRQAZ5PSERLHMSJFBHFR3QM2C/