GHSA-jp69-qvgm-mqwx · 深刻度: medium — libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows...
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.
総合評価: CVE-2026-23679 は低リスク(30.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.19%、9 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.01% | 0.19% | +0.18% |
| 2 | 2026-05-28 | — | 0.01% | — |
EPSS の全履歴 (全 2 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.9 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 6.2 | 3.1 | MEDIUM |
|
2.5 | 3.6 | [email protected] |
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
GHSA-jp69-qvgm-mqwx · 深刻度: medium — libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-23679 not yet assigned priority: Debian including 1 source packages (libusb-1.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-23679 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2026-23679/ |
ubuntu
|
medium | CVE-2026-23679 medium priority: Ubuntu including 1 source packages (libusb), 9 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): not-affected 8, needs-triage 1. | https://ubuntu.com/security/CVE-2026-23679 |
| URL | タグ |
|---|---|
| https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704 | Patch |
| https://github.com/libusb/libusb/issues/1813 | Issue Tracking Mitigation |
| https://github.com/libusb/libusb/pull/1814 | Issue Tracking Patch |
| https://github.com/libusb/libusb/releases/tag/v1.0.30 | Product Release Notes |
| https://www.vulncheck.com/advisories/libusb-null-pointer-dereference-in-parse-interface | Patch Third Party Advisory |