CVE-2023-27826

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-04-12. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 12%CVSS: 8.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SeowonIntech SWC 5100W WIMAX Bootloader 1.18.19.0, HW 0.0.7.0, and FW 1.11.0.1, 1.9.9.4 are vulnerable to OS Command Injection. which allows attackers to take over the system with root privilege by abusing doSystem() function.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
12%
EPSS %ILE
96%
KEV
Not listed

Published

April 12, 2023

Last Modified

February 8, 2025

References (6)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 102 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
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  7. 2026-07-23 02:20 UTCEG score recompute
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  44. 2026-06-12 23:10 UTCEPSS rescore
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  46. 2026-06-10 22:17 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51311
    First seen Apr 6, 2023

    WIMAX SWC-5100W Firmware V(1.11.0.1 :1.9.9.4) - Authenticated RCE

    Open source ↗

Frequently asked(5)

What is CVE-2023-27826?
CVE-2023-27826 is a high vulnerability published on April 12, 2023. SeowonIntech SWC 5100W WIMAX Bootloader 1.18.19.0, HW 0.0.7.0, and FW 1.11.0.1, 1.9.9.4 are vulnerable to OS Command Injection. which allows attackers to take over the system with root privilege by abusing doSystem() function.
When was CVE-2023-27826 disclosed?
CVE-2023-27826 was first published in the National Vulnerability Database on April 12, 2023, with the most recent update on February 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-27826 actively exploited?
CVE-2023-27826 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12% probability of exploitation in the next 30 days, which ranks it in the top 4.4% of all scored CVEs.
What is the CVSS score of CVE-2023-27826?
CVE-2023-27826 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-27826?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-27826, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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