JLSEC-2026-753

Source
https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-753.md
Import Source
https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-753.json
JSON Data
https://api.osv.dev/v1/vulns/JLSEC-2026-753
Upstream
  • EUVD-2026-39557
  • GHSA-c9q2-5c67-xg9p
Published
2026-07-14T21:41:35.775Z
Modified
2026-07-18T00:02:22.665515382Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/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 CVSS Calculator
Summary
A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting...
Details

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This affects builds using DTLS 1.3 and wolfSSL version 5.9.0 and earlier. A fix was added to the 5.9.1 release.

Database specific
{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-6679",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6679",
            "modified": "2026-06-27T20:26:02.470Z",
            "id": "CVE-2026-6679",
            "imported": "2026-07-17T22:36:36.580Z",
            "published": "2026-06-25T21:16:28.167Z",
            "database_specific": {
                "status": "Analyzed"
            }
        },
        {
            "url": "https://api.github.com/advisories/GHSA-c9q2-5c67-xg9p",
            "html_url": "https://github.com/advisories/GHSA-c9q2-5c67-xg9p",
            "published": "2026-06-25T21:31:32Z",
            "imported": "2026-07-17T22:36:36.762Z",
            "id": "GHSA-c9q2-5c67-xg9p",
            "modified": "2026-06-27T21:30:27Z"
        },
        {
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39557",
            "published": "2026-06-25T20:13:06Z",
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39557",
            "imported": "2026-07-17T22:36:46.563Z",
            "id": "EUVD-2026-39557",
            "modified": "2026-06-26T13:13:41Z"
        }
    ],
    "license": "CC-BY-4.0"
}
References

Affected packages

Julia / wolfSSL_jll

Package

Name
wolfSSL_jll
Purl
pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5

Affected ranges

Type
SEMVER
Events
Introduced
5.7.2+0
Fixed
5.9.2+0

Database specific

source
"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-753.json"