CVE-2026-15442

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Source
https://cve.org/CVERecord?id=CVE-2026-15442
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15442.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-15442
Downstream
Published
2026-09-27T09:24:31Z
Modified
2026-09-30T03:30:56Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Heap use-after-free on read during bidirectional (D)TLS shutdown
Details

In all builds that make use of (D)TLS, including default builds, there is a series of conditional states during the TLS shutdown which could lead to a heap-use-after free. If an application ended up getting a partial wolfSSL_read() which is sometimes caused by a small user buffer passed in, then called wolfSSL_shutdown for a bidirectional close and attempted to wolfSSL_read() again while the peer continues trying to send data during the shutdown it would lead to a state where a potential heap-use-after free happened.

Database specific 
{
    "cna_assigner":  "wolfSSL",
    "cwe_ids":  [
        "CWE-416"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15442.json"
}
References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type
GIT
Repo
https://github.com/wolfssl/wolfssl
Events
Introduced
e116c89a58af750421d82ece13f80516d2bde02e
Last Affected
ac01707f552c611fbd135cc723b2682b3e7f80f2
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "4.4.0"
        },
        {
            "last_affected":  "5.9.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

WCv5.*
WCv5.0-RC10
WCv5.0-RC11
WCv5.0-RC12
WCv5.0-RC9
v4.*
v4.4.0-stable
v4.5.0-stable
v4.6.0-stable
v4.7.0-stable
v4.7.1r
v4.8.0-stable
v5.*
v5.0.0-stable
v5.1.0-stable
v5.2.0-stable
v5.2.1
v5.3.0-stable
v5.4.0-stable
v5.5.0-stable
v5.5.1-stable
v5.5.2-stable
v5.5.3-stable
v5.5.4-stable
v5.6.0-stable
v5.6.2-stable
v5.6.3-stable
v5.6.4-stable
v5.6.6-stable
v5.7.0-stable
v5.7.2-stable
v5.7.4-stable
v5.7.6-stable
v5.8.0-stable
v5.8.2-stable
v5.8.4-stable
v5.9.0-stable
v5.9.1-stable
v5.9.2-stable
Other
wolfEntropy1
wolfEntropy2d

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15442.json"