← Back
CVE-2026-23245
high
CVSS 7.8
Vulnerability in Kernel (CVE-2026-23245)
Summary
vulnerability in Kernel (CVE-2026-23245). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23245** has been found in Kernel.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: upgrade Kernel to **6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8** or later.
If unsure, ask your IT team or search "Kernel CVE-2026-23245" on the vendor's site.
CVE-2026-23245 (Kernel) — CVSS v3 7.8
Attack vector: local / no user interaction
Patched: `6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (unclassified) exists in Kernel.
📍 Affected scope
Kernel — .
🔥 Severity
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'Kernel' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Kernel' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `Kernel` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade Kernel to 6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8ステージング環境で 6.1.167, 6.6.130, 6.12.78, 6.18.18, 6.19.8 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
Linux
Kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"5.8.0"},{"fixed":"6.1.167"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.130"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.18"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.8"}]}]
References
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23245.json
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-23245
- package https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- patch 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- web https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23
- web https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2
- web https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351
- web https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
- web https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae
- web https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432