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
CVE-2025-13837
Score 5.5 from GitHub Security Advisory (severity: LOW) published 2025-12-01. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EPSS
- 9.1%
- KEV
- Not listed
Published
December 1, 2025
Last Modified
March 3, 2026
References (9)
- cna@pythonhttps://github.com/python/cpython/commit/568342cfc8f002d9a15f30238f26b9d2e0e79036
- cna@pythonhttps://github.com/python/cpython/commit/5a8b19677d818fb41ee55f310233772e15aa1a2b
- cna@pythonhttps://github.com/python/cpython/commit/694922cf40aa3a28f898b5f5ee08b71b4922df70
- cna@pythonhttps://github.com/python/cpython/commit/71fa8eb8233b37f16c88b6e3e583b461b205d1ba
- cna@pythonhttps://github.com/python/cpython/commit/b64441e4852383645af5b435411a6f849dd1b4cb
- cna@pythonhttps://github.com/python/cpython/commit/cefee7d118a26ef6cd43db59bb9d98ca9a331111
- cna@pythonhttps://github.com/python/cpython/issues/119342
- cna@pythonhttps://github.com/python/cpython/pull/119343
- cna@pythonhttps://mail.python.org/archives/list/[email protected]/thread/2X5IBCJXRQAZ5PSERLHMSJFBHFR3QM2C/
Vendor Advisories for CVE-2025-13837(8)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:21275Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
- RHSA-2026:19177Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:19064Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:10950Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
- RHSA-2026:8824Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:8822Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:7661Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- RHSA-2026:7443Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Patch Availability(9)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3.5-venv (3.5.2-2ubuntu0~16.04.4~14.04.1+esm9) @ trusty | 2026-05-29 | ubuntu |
| redhat | rhui5/rhua-rhel9:1779798222 | 2026-05-27 | redhat |
| redhat | python3.12-0:3.12.13-2.el9_8 | 2026-05-19 | redhat |
| redhat | python3.12-0:3.12.13-2.el10_2 | 2026-05-19 | redhat |
| redhat | python3.12-0:3.12.13-2.el8_10 | 2026-04-27 | redhat |
| redhat | python3-11-main-3.11.15-4.hum1 | 2026-04-17 | redhat |
| redhat | python3-12-main-3.12.13-3.hum1 | 2026-04-17 | redhat |
| redhat | python3-14-main-3.14.4-1.hum1 | 2026-04-11 | redhat |
| redhat | python3-13-main-3.13.13-1.hum1 | 2026-04-10 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 14× in last 7d / 48× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
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- 2026-07-13 22:29 UTCEPSS rescore
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- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:14 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 09:11 UTCOSV refresh
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:30 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
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- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-06-28 04:55 UTCEPSS rescore
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- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-23 21:32 UTCEPSS rescore
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- 2026-06-21 14:56 UTCEPSS rescore
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- 2026-06-19 19:25 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 21:05 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-15 17:48 UTCEPSS rescore
- 2026-06-14 23:17 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
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- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-11 13:59 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-05 06:10 UTCEPSS rescore
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- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-29 18:40 UTCEG score recompute
- 2026-05-29 18:40 UTCVendor advisory
- 2026-05-29 18:40 UTCGHSA enrichment
- 2026-05-29 13:44 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-13837?
When was CVE-2025-13837 disclosed?
Is CVE-2025-13837 actively exploited?
What is the CVSS score of CVE-2025-13837?
How do I remediate CVE-2025-13837?
Dependency Blast Radius
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