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CVE-2026-45852
high
CVSS 7.8
Vulnerability in linux (CVE-2026-45852)
Summary
vulnerability in linux (CVE-2026-45852). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-45852** has been found in linux.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-45852" on the vendor's site.
CVE-2026-45852 (linux) — CWE-415 / CVSS v3 7.8
Attack vector: local / no user interaction
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** (CWE-415) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'linux' .` 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 'linux' . | 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 `linux` を grep し、稼働しているサービス・バージョンを把握する。
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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。
References
- web https://nvd.nist.gov/vuln/detail/CVE-2026-45852
- web https://git.kernel.org/stable/c/0beefd0e15d962f497aad750b2d5e9c3570b66d1
- web https://git.kernel.org/stable/c/22b8c23a3b92d023614bb00896fe364b2c1a31d3
- web https://git.kernel.org/stable/c/26793db60925df1e88a29466813d586cbc190b8c
- web https://git.kernel.org/stable/c/26a9cfe12f4ffdeaa136f252478986fa5f397ddc
- web https://git.kernel.org/stable/c/5c07aef09a121a4cd622a71eb0753a9e135c84a8
- web https://git.kernel.org/stable/c/af5956243018918130d52c9f671efdb40bab3366
- web https://git.kernel.org/stable/c/ce6f8e007682f378279d4cf83b240f12d52c723b
- web https://git.kernel.org/stable/c/d286f0d4e3ad3caf5f0e673cdad7bf89bf37d947
- web https://github.com/advisories/GHSA-m5rc-6p5x-73gp
- web https://git.kernel.org/stable/c/9abff51163aa1bc275ec356f74fe976291860a7f
- web https://git.kernel.org/stable/c/b98ab5494dbd48652561aa0b9c32f10500220745
- web https://git.kernel.org/stable/c/d493e0bfc748a520c349d6c8791b262aa5ad2e4e
- web https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45852.json
- web https://bugzilla.redhat.com/show_bug.cgi?id=2482166
- web https://access.redhat.com/security/cve/CVE-2026-45852
- web https://access.redhat.com/errata/RHSA-2026:27713
- web https://access.redhat.com/errata/RHSA-2026:25217
- web https://access.redhat.com/errata/RHSA-2026:25121
- web https://access.redhat.com/errata/RHSA-2026:25120
- web https://access.redhat.com/errata/RHSA-2026:33899
- web https://access.redhat.com/errata/RHSA-2026:34094
- web https://access.redhat.com/errata/RHSA-2026:35844
- web https://access.redhat.com/errata/RHSA-2026:35863
- web https://access.redhat.com/errata/RHSA-2026:35896
- web https://access.redhat.com/errata/RHSA-2026:41236