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)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 13%
- 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(9)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:58981Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update
- 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
- +1 more
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.
Affected Packages
(9 across 4 ecosystems)
Debian:14(3)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pypy3 | 7.3.19+dfsg-2, 7.3.20+dfsg-1, 7.3.20+dfsg-2, 7.3.20+dfsg-3, 7.3.20+dfsg-4 | 7.3.21+dfsg-1 | — |
| python3.13 | 3.13.5-2, 3.13.6-1, 3.13.7-1, 3.13.8-1, 3.13.9-1 | 3.13.11-1 | — |
| python3.14 | 3.14.0-1 ... 3.14.0~rc3-1 (13 versions) | 3.14.2-1 | — |
Debian:11(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pypy3 | 7.3.10+dfsg-1 ... 7.3.9+dfsg-5 (53 versions) | — | — |
| python3.9 | 3.9.2-1, 3.9.2-1+deb11u1, 3.9.2-1+deb11u2, 3.9.2-1+deb11u3 | 3.9.2-1+deb11u4 | — |
Debian:12(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pypy3 | 7.3.11+dfsg-2 ... 7.3.23+dfsg-1 (29 versions) | — | — |
| python3.11 | 3.11.2-6 ... 3.11.2-6+deb12u6 (7 versions) | 3.11.2-6+deb12u7 | — |
Debian:13(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pypy3 | 7.3.19+dfsg-2 ... 7.3.23+dfsg-1 (11 versions) | — | — |
| python3.13 | 3.13.5-2 | 3.13.5-2+deb13u1 | — |
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 8× in last 7d / 33× 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.
Showing the most recent 100 of 131 total refreshes for this CVE.
- 2026-08-30 19:16 UTCEPSS rescore
- 2026-08-30 01:21 UTCEPSS rescore
- 2026-08-28 21:40 UTCEPSS rescore
- 2026-08-27 14:24 UTCEPSS rescore
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- 2026-08-24 14:02 UTCOSV refresh
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- 2026-08-09 13:45 UTCEPSS rescore
- 2026-08-08 09:01 UTCEG score recompute
- 2026-08-08 09:01 UTCVendor advisory
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- 2026-08-08 09:01 UTCGHSA enrichment
- 2026-08-07 16:26 UTCEPSS rescore
- 2026-08-06 13:45 UTCEPSS rescore
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- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 14:41 UTCOSV refresh
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:49 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-07 13:45 UTCEPSS rescore
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- 2026-07-06 09:11 UTCOSV refresh
- 2026-07-06 02:22 UTCEPSS rescore
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- 2026-06-17 21:05 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 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
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-13837
Is Your Infrastructure Affected by CVE-2025-13837?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.