CVE-2026-23679

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Source
https://cve.org/CVERecord?id=CVE-2026-23679
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23679.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23679
Downstream
Related
Published
2026-05-27T13:21:37Z
Modified
2026-09-09T10:11:40Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
libusb < 1.0.30 NULL Pointer Dereference in parse_interface()
Details

libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows attackers to crash applications by supplying a malformed USB configuration descriptor where an interface claims bNumEndpoints greater than zero but is followed by a class-specific descriptor whose bLength exceeds the remaining buffer size, causing parse_interface() to return early without allocating the endpoint array. Attackers can exploit this flaw through libusb_get_active_config_descriptor or libusb_get_config_descriptor by providing crafted descriptors via virtualized USB passthrough, file-based descriptor parsing, or network sources, causing any application iterating over endpoints to dereference a NULL endpoint pointer and crash.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23679.json"
}
References

Affected packages

Git / github.com/libusb/libusb

Affected ranges

Type
GIT
Repo
https://github.com/libusb/libusb
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
87a55632db62c9bdc58cd31d3ccfa673f1bb017f
Fixed
578ab76b4c434f8b204137ab6d7310689c7a9704
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:libusb:libusb:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.0.30"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

Other
academic-demo
v0.*
v0.9.0
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.10-rc1
v1.0.11
v1.0.11-rc1
v1.0.12
v1.0.12-rc1
v1.0.13
v1.0.13-rc1
v1.0.13-rc2
v1.0.14
v1.0.15
v1.0.15-rc1
v1.0.15-rc2
v1.0.15-rc3
v1.0.16
v1.0.16-rc1
v1.0.16-rc2
v1.0.16-rc3
v1.0.17
v1.0.17-rc1
v1.0.18
v1.0.18-rc1
v1.0.19
v1.0.19-rc1
v1.0.19-rc2
v1.0.2
v1.0.20
v1.0.20-rc1
v1.0.20-rc2
v1.0.20-rc3
v1.0.21
v1.0.21-rc1
v1.0.21-rc2
v1.0.21-rc3
v1.0.21-rc4
v1.0.21-rc5
v1.0.21-rc6
v1.0.22
v1.0.22-rc1
v1.0.22-rc2
v1.0.22-rc3
v1.0.22-rc4
v1.0.23
v1.0.23-rc1
v1.0.23-rc2
v1.0.23-rc3
v1.0.24
v1.0.24-rc1
v1.0.25
v1.0.25-rc1
v1.0.26
v1.0.26-rc1
v1.0.27
v1.0.27-rc1
v1.0.27-rc2
v1.0.28
v1.0.28-rc1
v1.0.29
v1.0.3
v1.0.30-rc1
v1.0.30-rc2
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.0.9-rc4
v1.0.9-rc5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23679.json"