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Vulnerability details: VCID-jeen-6u3v-8qab
Vulnerability ID VCID-jeen-6u3v-8qab
Aliases CVE-2026-34871
Summary An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator (PRNG).
Status Published
Exploitability 0.5
Weighted Severity 3.4
Risk 1.7
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00014 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
epss 0.00018 https://api.first.org/data/v1/epss?cve=CVE-2026-34871
cvssv3.1 6.7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 6.7 https://mbed-tls.readthedocs.io/en/latest/security-advisories/
ssvc Track https://mbed-tls.readthedocs.io/en/latest/security-advisories/
cvssv3.1 6.7 https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/
ssvc Track https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-34871
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34871
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1132577 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132577
mbedtls-security-advisory-2026-03-dev-random https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/
security-advisories https://mbed-tls.readthedocs.io/en/latest/security-advisories/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://mbed-tls.readthedocs.io/en/latest/security-advisories/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-01T20:04:03Z/ Found at https://mbed-tls.readthedocs.io/en/latest/security-advisories/
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-01T20:04:03Z/ Found at https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/
Exploit Prediction Scoring System (EPSS)
Percentile 0.01905
EPSS Score 0.00013
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-02T16:20:36.945613+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.1.0