CVE-2026-15027

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-23. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.2%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

CGServiSign developed by Changing has a OS Command Injection vulnerability. Unauthenticated remote attackers can induce victims to visit a malicious web page and inject arbitrary OS commands through the local service interface, resulting in command execution on the victim's local computer.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
41
EG Risk 41/100CISA SSVC

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%
Exploitation3% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
3.2%
EPSS %ILE
87th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 23, 2026

Last Modified

September 24, 2026

Advisory Details (2)

Auto-updated Sep 23, 2026
No patch confirmed yet. Sources: cert.
cert

Changing｜CGServiSign - OS Command Injection-TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

https://www.twcert.org.tw/en/cp-139-11214-89281-2.html
cert

全景軟體｜CGServiSign - OS Command Injection-TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報

https://www.twcert.org.tw/tw/cp-132-11213-28a81-1.html

Vendor Advisories for CVE-2026-15027(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 47× 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.

  1. 2026-10-04 08:04 UTCGHSA enrichment
  2. 2026-10-03 20:30 UTCEG score recompute
  3. 2026-10-03 20:30 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 09:01 UTCGHSA enrichment
  6. 2026-10-02 21:28 UTCEG score recompute
  7. 2026-10-02 21:28 UTCGHSA enrichment
  8. 2026-10-02 09:55 UTCGHSA enrichment
  9. 2026-10-01 22:25 UTCEG score recompute
  10. 2026-10-01 22:25 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 10:46 UTCGHSA enrichment
  13. 2026-09-30 23:16 UTCEG score recompute
  14. 2026-09-30 23:16 UTCGHSA enrichment
  15. 2026-09-30 15:02 UTCEPSS rescore
  16. 2026-09-30 11:44 UTCGHSA enrichment
  17. 2026-09-30 00:14 UTCEG score recompute
  18. 2026-09-30 00:14 UTCGHSA enrichment
  19. 2026-09-29 15:20 UTCEPSS rescore
  20. 2026-09-29 09:50 UTCGHSA enrichment
  21. 2026-09-28 22:20 UTCEG score recompute
  22. 2026-09-28 22:20 UTCGHSA enrichment
  23. 2026-09-28 13:51 UTCEPSS rescore
  24. 2026-09-28 10:51 UTCGHSA enrichment
  25. 2026-09-27 23:22 UTCEG score recompute
Show 22 more
  1. 2026-09-27 23:22 UTCGHSA enrichment
  2. 2026-09-27 13:47 UTCEPSS rescore
  3. 2026-09-27 11:52 UTCGHSA enrichment
  4. 2026-09-27 00:22 UTCEG score recompute
  5. 2026-09-27 00:22 UTCGHSA enrichment
  6. 2026-09-26 15:58 UTCEPSS rescore
  7. 2026-09-26 12:53 UTCGHSA enrichment
  8. 2026-09-26 01:24 UTCEG score recompute
  9. 2026-09-26 01:24 UTCGHSA enrichment
  10. 2026-09-25 13:52 UTCGHSA enrichment
  11. 2026-09-25 02:23 UTCGHSA enrichment
  12. 2026-09-24 14:53 UTCGHSA enrichment
  13. 2026-09-24 14:18 UTCEG score recompute
  14. 2026-09-24 14:18 UTCGHSA enrichment
  15. 2026-09-24 02:48 UTCGHSA enrichment
  16. 2026-09-23 15:19 UTCEG score recompute
  17. 2026-09-23 15:19 UTCGHSA enrichment
  18. 2026-09-23 14:25 UTCEG score recompute
  19. 2026-09-23 14:25 UTCGHSA enrichment
  20. 2026-09-23 09:17 UTCEG score recompute
  21. 2026-09-23 08:41 UTCEG score recompute
  22. 2026-09-23 08:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15027?
CVE-2026-15027 is a high vulnerability published on September 23, 2026. CGServiSign developed by Changing has a OS Command Injection vulnerability. Unauthenticated remote attackers can induce victims to visit a malicious web page and inject arbitrary OS commands through the local service interface, resulting in command execution on the victim's local computer.
When was CVE-2026-15027 disclosed?
CVE-2026-15027 was first published on September 23, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15027 actively exploited?
CVE-2026-15027 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.2% probability of exploitation in the next 30 days (87th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15027?
CVE-2026-15027 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15027?
No fix for CVE-2026-15027 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-15027 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-15027

Explore →

Is Your Infrastructure Affected by CVE-2026-15027?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs