CVE-2025-56566

MEDIUMPre-NVD 4.64.6—
EchelonGraph scoreHIGH confidence

Score 4.6 from GitHub Security Advisory published 2026-09-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
4.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.6Exploit: Elevated riskExposed services: Not assessed

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

MikroTik firmware 7.19.4 stores sensitive authentication credentials and network state in cleartext within non-volatile storage. An attacker with physical access to the device can extract this material from an SPI flash dump, without authenticating to the device and without knowledge of the administrative password.

CVSS v3
4.6
EG Score
4.6MEDIUMhigh confidence
EG Risk
37
EG Risk 37/100CISA 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
Severity46% × 45%
Exploitation40% × 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
0.2%
EPSS %ILE
4th
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 16, 2026

Last Modified

September 22, 2026

Advisory Details (1)

Auto-updated Sep 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

security-advisories/CVE-2025-56566.md at main · RIFTI-Offensive-Security/security-advisories · GitHub

https://github.com/RIFTI-Offensive-Security/security-advisories/blob/main/CVE-2025-56566.md

Vendor Advisories for CVE-2025-56566(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 20× in last 7d / 53× 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. 2026-10-05 05:20 UTCEG score recompute
  2. 2026-10-05 05:20 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 04:40 UTCEG score recompute
  5. 2026-10-04 04:40 UTCGHSA enrichment
  6. 2026-10-03 14:24 UTCEPSS rescore
  7. 2026-10-03 04:01 UTCEG score recompute
  8. 2026-10-03 04:01 UTCGHSA enrichment
  9. 2026-10-02 03:13 UTCEG score recompute
  10. 2026-10-02 03:13 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 19:49 UTCEPSS rescore
  13. 2026-10-01 02:07 UTCEG score recompute
  14. 2026-10-01 02:07 UTCGHSA enrichment
  15. 2026-09-30 15:02 UTCEPSS rescore
  16. 2026-09-30 01:28 UTCEG score recompute
  17. 2026-09-30 01:28 UTCGHSA enrichment
  18. 2026-09-29 00:49 UTCEG score recompute
  19. 2026-09-29 00:49 UTCGHSA enrichment
  20. 2026-09-28 13:50 UTCEPSS rescore
  21. 2026-09-28 00:10 UTCEG score recompute
  22. 2026-09-28 00:10 UTCGHSA enrichment
  23. 2026-09-26 23:31 UTCEG score recompute
  24. 2026-09-26 23:31 UTCGHSA enrichment
  25. 2026-09-26 15:58 UTCEPSS rescore
Show 28 more
  1. 2026-09-26 15:58 UTCEPSS rescore
  2. 2026-09-26 00:25 UTCEPSS rescore
  3. 2026-09-25 22:35 UTCGHSA enrichment
  4. 2026-09-24 21:34 UTCEG score recompute
  5. 2026-09-24 21:33 UTCGHSA enrichment
  6. 2026-09-24 14:02 UTCEPSS rescore
  7. 2026-09-23 20:52 UTCEG score recompute
  8. 2026-09-23 20:52 UTCGHSA enrichment
  9. 2026-09-23 13:47 UTCEPSS rescore
  10. 2026-09-22 20:13 UTCEG score recompute
  11. 2026-09-22 20:13 UTCGHSA enrichment
  12. 2026-09-22 17:38 UTCEG score recompute
  13. 2026-09-22 17:38 UTCGHSA enrichment
  14. 2026-09-22 16:25 UTCEG score recompute▲ 4.60
  15. 2026-09-22 16:25 UTCGHSA enrichment
  16. 2026-09-22 16:24 UTCMITRE cvelistV5CVSS v3 → 4.6 · severity → MEDIUM
  17. 2026-09-21 21:06 UTCEPSS rescore
  18. 2026-09-20 20:15 UTCEPSS rescore
  19. 2026-09-20 20:15 UTCEPSS rescore
  20. 2026-09-19 23:23 UTCEG score recompute
  21. 2026-09-19 23:23 UTCGHSA enrichment
  22. 2026-09-19 15:42 UTCEPSS rescore
  23. 2026-09-18 19:27 UTCEPSS rescore
  24. 2026-09-18 19:27 UTCEPSS rescore
  25. 2026-09-17 19:29 UTCEPSS rescore
  26. 2026-09-16 21:22 UTCNVD update
  27. 2026-09-16 20:43 UTCEG score recompute
  28. 2026-09-16 20:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-56566?
CVE-2025-56566 is a medium vulnerability published on September 16, 2026. MikroTik firmware 7.19.4 stores sensitive authentication credentials and network state in cleartext within non-volatile storage. An attacker with physical access to the device can extract this material from an SPI flash dump, without authenticating to the device and without knowledge of the…
When was CVE-2025-56566 disclosed?
CVE-2025-56566 was first published on September 16, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-56566 actively exploited?
CVE-2025-56566 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-56566?
CVE-2025-56566 has a CVSS v3.1 base score of 4.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-56566?
No fix for CVE-2025-56566 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-2025-56566 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-56566

Explore →

Is Your Infrastructure Affected by CVE-2025-56566?

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

Book a Demo →Browse All CVEs