Is CVE-2025-48965 in the CISA KEV catalog?

No. CVE-2025-48965 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-48965?

CVE-2025-48965 has a CVSS v3 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2025-48965?

CVE-2025-48965 has an EPSS score of 0.46% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-48965?

Upgrade mbedtls on debian 11 to 2.16.9-0.1+deb11u2 or later. Fixes are available for 14 affected products.

CVE & CISA-KEV Catalog

CVE-2025-48965

MEDIUM

4.0

CVSS v3

NVD

Description

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.

CWE-696 CWE-476NULL Pointer Dereference

How to fix

Remediation Available

mbedtlsDebian

Fixed in:2.16.9-0.1+deb11u2CVE-2025-48965

Fixed in:3.6.4-1CVE-2025-48965

libmbedcrypto1Ubuntu

Fixed in:2.8.0-1ubuntu0.1~esm1USN-8123-1

libmbedcrypto3Ubuntu

Fixed in:2.16.4-1ubuntu2+esm1USN-8123-1

libmbedcrypto7Ubuntu

Fixed in:2.28.0-1ubuntu0.1~esm1USN-8123-1

libmbedcrypto7t64Ubuntu

Fixed in:2.28.8-1ubuntu0.1~esm1USN-8123-1

libmbedtls-devUbuntu

Fixed in:2.8.0-1ubuntu0.1~esm1USN-8123-1

Fixed in:2.16.4-1ubuntu2+esm1USN-8123-1

Fixed in:2.28.0-1ubuntu0.1~esm1USN-8123-1

Fixed in:2.28.8-1ubuntu0.1~esm1USN-8123-1

libmbedtls10Ubuntu

Fixed in:2.8.0-1ubuntu0.1~esm1USN-8123-1

libmbedtls12Ubuntu

Fixed in:2.16.4-1ubuntu2+esm1USN-8123-1

libmbedtls14Ubuntu

Fixed in:2.28.0-1ubuntu0.1~esm1USN-8123-1

libmbedtls14t64Ubuntu

Fixed in:2.28.8-1ubuntu0.1~esm1USN-8123-1

libmbedx509-0Ubuntu

Fixed in:2.8.0-1ubuntu0.1~esm1USN-8123-1

Fixed in:2.16.4-1ubuntu2+esm1USN-8123-1

libmbedx509-1Ubuntu

Fixed in:2.28.0-1ubuntu0.1~esm1USN-8123-1

libmbedx509-1t64Ubuntu

Fixed in:2.28.8-1ubuntu0.1~esm1USN-8123-1

mbedtlsUbuntu

Fixed in:2.8.0-1ubuntu0.1~esm1USN-8123-1

Fixed in:2.16.4-1ubuntu2+esm1USN-8123-1

Fixed in:2.28.0-1ubuntu0.1~esm1USN-8123-1

Fixed in:2.28.8-1ubuntu0.1~esm1USN-8123-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Vendor Advisory1

mbed-tls.readthedocs.io

Mitigation1

github.com

Other references1

lists.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.