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NVD Vulnerability Details :
CVE-2026-25834
Analyzed
More InfoOfficial Page
Source-cve@mitre.org
View Known Exploited Vulnerability (KEV) details
Published At-01 Apr, 2026 | 18:16
Updated At-06 Apr, 2026 | 14:17

Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CPE Matches
Arm Limited
arm
>>mbed_tls>>Versions from 3.3.0(inclusive) to 3.6.6(exclusive)
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
Arm Limited
arm
>>mbed_tls>>4.0.0
cpe:2.3:a:arm:mbed_tls:4.0.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-295Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-327Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-295
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-327
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://mbed-tls.readthedocs.io/en/latest/security-advisories/cve@mitre.org
Vendor Advisory
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-sigalg-injection/cve@mitre.org
Vendor Advisory
Hyperlink: https://mbed-tls.readthedocs.io/en/latest/security-advisories/
Source: cve@mitre.org
Resource:
Vendor Advisory
Hyperlink: https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-sigalg-injection/
Source: cve@mitre.org
Resource:
Vendor Advisory
Change History
0Changes found
Details not found