CVE-2026-92255

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-09-16. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.4Exploit: None knownExposed services: Not assessed

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

Netcore NR255-V version 1.5.130703 contains an out-of-bounds read vulnerability in filter_arp_put_file.cgi caused by improper use of a string handling API. Attackers can trigger an unterminated buffer over-read by exploiting this flaw in the affected component, potentially exposing adjacent memory contents.

CVSS v3
5.4
EG Score
5.4MEDIUMhigh confidence
EG Risk
24
EG Risk 24/100CISA 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
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
0.3%
EPSS %ILE
25th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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 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 15, 2026

Last Modified

September 24, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Netcore NR255-V 1.5.130703 Out-of-Bounds Read in filter_arp_put_file.cgi via String API Misuse | Advisories | VulnCheck

https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-out-of-bounds-read-in-filter-arp-put-file-cgi-via-string-api-misuse
generic🟡 PoC Available

netcore-router-public-refs/2026.08.19-netcore-nr255v-arp-import-overread.md at main · draw-ctf/netcore-router-public-refs · GitHub

https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-arp-import-overread.md

Vendor Advisories for CVE-2026-92255(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 17× in last 7d / 55× 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 23:22 UTCEPSS rescore
  2. 2026-10-04 09:57 UTCEG score recompute
  3. 2026-10-04 09:57 UTCGHSA enrichment
  4. 2026-10-03 08:41 UTCEG score recompute
  5. 2026-10-03 08:41 UTCGHSA enrichment
  6. 2026-10-02 06:16 UTCEG score recompute
  7. 2026-10-02 06:15 UTCGHSA enrichment
  8. 2026-10-01 19:51 UTCEPSS rescore
  9. 2026-10-01 04:59 UTCEG score recompute
  10. 2026-10-01 04:59 UTCGHSA enrichment
  11. 2026-09-30 15:04 UTCEPSS rescore
  12. 2026-09-30 03:41 UTCEG score recompute
  13. 2026-09-30 03:41 UTCGHSA enrichment
  14. 2026-09-29 02:23 UTCEG score recompute
  15. 2026-09-29 02:23 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 13:52 UTCEPSS rescore
  18. 2026-09-28 01:07 UTCEG score recompute
  19. 2026-09-28 01:07 UTCGHSA enrichment
  20. 2026-09-27 13:49 UTCEPSS rescore
  21. 2026-09-26 23:51 UTCEG score recompute
  22. 2026-09-26 23:51 UTCGHSA enrichment
  23. 2026-09-26 15:59 UTCEPSS rescore
  24. 2026-09-25 22:35 UTCGHSA enrichment
  25. 2026-09-24 21:19 UTCEG score recompute
Show 30 more
  1. 2026-09-24 21:19 UTCGHSA enrichment
  2. 2026-09-24 14:04 UTCEPSS rescore
  3. 2026-09-23 23:58 UTCEG score recompute
  4. 2026-09-23 23:57 UTCGHSA enrichment
  5. 2026-09-23 17:54 UTCEPSS rescore
  6. 2026-09-22 22:41 UTCEG score recompute
  7. 2026-09-22 22:41 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-21 21:25 UTCEG score recompute
  10. 2026-09-21 21:25 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 21:02 UTCEG score recompute
  13. 2026-09-21 21:02 UTCGHSA enrichment
  14. 2026-09-21 04:45 UTCEG score recompute
  15. 2026-09-21 04:45 UTCGHSA enrichment
  16. 2026-09-20 20:16 UTCEPSS rescore
  17. 2026-09-20 03:24 UTCEG score recompute
  18. 2026-09-20 03:24 UTCGHSA enrichment
  19. 2026-09-19 02:08 UTCEG score recompute
  20. 2026-09-19 02:08 UTCGHSA enrichment
  21. 2026-09-18 19:28 UTCEPSS rescore
  22. 2026-09-18 00:51 UTCEG score recompute
  23. 2026-09-18 00:51 UTCGHSA enrichment
  24. 2026-09-17 19:32 UTCEPSS rescore
  25. 2026-09-16 23:35 UTCEG score recompute
  26. 2026-09-16 23:35 UTCGHSA enrichment
  27. 2026-09-16 14:09 UTCEPSS rescore
  28. 2026-09-15 22:19 UTCEG score recompute
  29. 2026-09-15 22:03 UTCEG score recompute
  30. 2026-09-15 22:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-92255?
CVE-2026-92255 is a medium vulnerability published on September 15, 2026. Netcore NR255-V version 1.5.130703 contains an out-of-bounds read vulnerability in filterarpput_file.cgi caused by improper use of a string handling API. Attackers can trigger an unterminated buffer over-read by exploiting this flaw in the affected component, potentially exposing adjacent memory…
When was CVE-2026-92255 disclosed?
CVE-2026-92255 was first published on September 15, 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-2026-92255 actively exploited?
CVE-2026-92255 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-92255?
CVE-2026-92255 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-92255?
No fix for CVE-2026-92255 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-2026-92255 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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