Out-of-Bounds Read in sblim-sfcb (CVE-2026-73583)
Summary
Vulnerability in sblim-sfcb (CVE-2026-73583). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access, leading to the termination of the provider-manager process and a denial of service. This could also potentially result in limited unintended information disclosure.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-73583 has been found in sblim-sfcb.
Risk of unauthorized operations or information disclosure. CVSS score: 6.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "sblim-sfcb CVE-2026-73583" on the vendor's site.
CVE-2026-73583 (sblim-sfcb) — CWE-125 / CVSS v3 6.6
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.
Out-of-bounds read (CWE-125) exists in sblim-sfcb.
Check the vendor advisory for the affected versions of sblim-sfcb.
Severity: Medium (CVSS 6.6/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'sblim-sfcb' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'sblim-sfcb' . | 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
sblim-sfcbを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2026-73583 sblim-sfcb
References
- patch secalert@redhat.com
- patch secalert@redhat.com
- web nvd.nist.gov
- web github.com