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NVD Vulnerability Details :
CVE-2026-7531
Analyzed
More InfoOfficial Page
Source-facts@wolfssl.com
View Known Exploited Vulnerability (KEV) details
Published At-25 Jun, 2026 | 20:17
Updated At-26 Jun, 2026 | 16:53

Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.

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
Secondary4.02.3LOW
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A
Type: Secondary
Version: 4.0
Base score: 2.3
Base severity: LOW
Vector:
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
wolfssl
wolfssl
>>wolfssl>>Versions from 5.8.0(inclusive) to 5.9.2(exclusive)
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-416Secondaryfacts@wolfssl.com
CWE ID: CWE-416
Type: Secondary
Source: facts@wolfssl.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/wolfSSL/wolfssl/pull/10327facts@wolfssl.com
Issue Tracking
Patch
https://www.wolfssl.com/docs/security-vulnerabilities/facts@wolfssl.com
Vendor Advisory
Hyperlink: https://github.com/wolfSSL/wolfssl/pull/10327
Source: facts@wolfssl.com
Resource:
Issue Tracking
Patch
Hyperlink: https://www.wolfssl.com/docs/security-vulnerabilities/
Source: facts@wolfssl.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found