Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting data with val.p of NULL but val.len greater than zero.
CVE-2025-48965
Score 4.0 from GitHub Security Advisory published 2025-07-20. NVD baseline CVSS 4.0; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.0
- EG Score
- 4.0(medium)
- EG Risk
- 18(Track)EG Risk 18/100SSVC: 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 computedSeverity40% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 42%
- KEV
- Not listed
Published
July 20, 2025
Last Modified
November 3, 2025
References (3)
- cve@mitrehttps://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-6.md
- cve@mitrehttps://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libmbedx509-0 (2.16.4-1ubuntu2+esm1) @ focal | 2026-05-30 | ubuntu |
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 9 ecosystems)
Alpine:v3.20(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-r0 | — |
Alpine:v3.21(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-r0 | — |
Alpine:v3.22(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-r0 | — |
Alpine:v3.23(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-r0 | — |
Alpine:v3.24(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-r0 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | 2.16.9-0.1, 2.16.9-0.1+deb11u1 | 2.16.9-0.1+deb11u2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | 2.28.3-1 ... 3.6.7-3 (22 versions) | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| mbedtls | — | 3.6.4-1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 6× in last 7d / 31× 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 157 total refreshes for this CVE.
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-17 19:29 UTCEPSS rescore
- 2026-09-16 14:07 UTCEPSS rescore
- 2026-09-15 03:09 UTCEPSS rescore
- 2026-09-13 06:54 UTCOSV refresh
- 2026-09-12 15:00 UTCEPSS rescore
- 2026-09-11 14:52 UTCEPSS rescore
- 2026-09-11 09:36 UTCEPSS rescore
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- 2026-08-30 19:16 UTCEPSS rescore
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- 2026-08-27 14:24 UTCEPSS rescore
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- 2026-08-25 07:46 UTCOSV refresh
- 2026-08-24 14:16 UTCEPSS rescore
- 2026-08-24 09:22 UTCEPSS rescore
- 2026-08-23 00:18 UTCEPSS rescore
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-20 22:54 UTCEPSS rescore
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-18 13:47 UTCEPSS rescore
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- 2026-08-15 01:29 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-12 13:50 UTCEPSS rescore
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- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 01:20 UTCOSV refresh
- 2026-08-08 16:36 UTCEPSS rescore
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 10:37 UTCEPSS rescore
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- 2026-08-02 02:26 UTCEPSS rescore
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-24 00:41 UTCOSV refresh
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 02:57 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:07 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 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
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-13 22:29 UTCEPSS rescore
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-06 18:51 UTCOSV refresh
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
- 2026-06-29 14:06 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-48965?
When was CVE-2025-48965 disclosed?
Is CVE-2025-48965 actively exploited?
What is the CVSS score of CVE-2025-48965?
How do I remediate CVE-2025-48965?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-48965
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