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Vulnerability details: VCID-9kev-ferz-5bhr
Vulnerability ID VCID-9kev-ferz-5bhr
Aliases CVE-2025-13912
Summary Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks.
Status Published
Exploitability 0.5
Weighted Severity 0.9
Risk 0.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-203 Observable Discrepancy
System Score Found at
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
epss 0.00025 https://api.first.org/data/v1/epss?cve=CVE-2025-13912
cvssv4 1 https://github.com/wolfSSL/wolfssl/pull/9148
ssvc Track https://github.com/wolfSSL/wolfssl/pull/9148
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-13912
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-13912
9148 https://github.com/wolfSSL/wolfssl/pull/9148
No exploits are available.
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N Found at https://github.com/wolfSSL/wolfssl/pull/9148
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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none

passive

active

high

low

none

high

low

none

high

low

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low

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low

none

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low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-12-11T19:19:06Z/ Found at https://github.com/wolfSSL/wolfssl/pull/9148
Exploit Prediction Scoring System (EPSS)
Percentile 0.05169
EPSS Score 0.0002
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:38:20.582846+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0