EUVD-2026-13150Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
5DescriptionCVE.org
Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.
AnalysisAI
Buffer overflow vulnerabilities in wolfSSL's CRL parser enable heap and stack memory corruption when processing maliciously crafted Certificate Revocation Lists, allowing potential code execution on affected systems. This vulnerability only impacts installations with explicit CRL support enabled that load CRLs from untrusted sources. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires wolfSSL built with CRL (Certificate Revocation List) support explicitly enabled. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Out-of-bounds reads can leak sensitive information from memory, while out-of-bounds writes can corrupt data or enable code execution. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker provides a crafted input that causes the application to read or write beyond buffer boundaries, potentially leaking memory contents or hijacking control flow. |
| Remediation | Implement proper bounds checking on all array and buffer accesses. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all systems using wolfSSL with CRL support enabled and identify which parse CRLs from untrusted or external sources. …
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Vendor StatusVendor
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 4.6.0+p1-0+deb11u2 | - |
| bookworm | vulnerable | 5.5.4-2+deb12u2 | - |
| trixie | vulnerable | 5.7.2-0.1+deb13u1 | - |
| forky, sid | vulnerable | 5.8.4-1 | - |
| (unstable) | fixed | (unfixed) | - |
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External POC / Exploit Code
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