CVE-2026-76865

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH confidence

Score 4.9 from GitHub Security Advisory published 2026-09-16. a secondary CVSS source baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

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

Netcore NR255-V version 1.5.130703 contains a null pointer dereference vulnerability in the QoS setter CGI handlers filter_conn_del_cgi.c and gre_prio_set_cgi.c due to unchecked atoi() results. An attacker can trigger the flaw by supplying crafted input to these handlers, causing a denial of service.

CVSS v3
4.9
EG Score
4.9(high)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (2)

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

Netcore NR255-V 1.5.130703 NULL Pointer Dereference via Unchecked atoi() in QoS Setter Handlers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-null-pointer-dereference-via-unchecked-atoi-in-qos-setter-handlers
generic🟡 PoC Available

netcore-router-public-refs/2026.08.19-netcore-nr255v-null-deref-atoi.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-null-deref-atoi.md

Vendor Advisories for CVE-2026-76865(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 18× in last 7d / 29× 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. 2026-09-24 14:14 UTCEG score recompute
  2. 2026-09-24 14:14 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 11:51 UTCEG score recompute
  6. 2026-09-23 11:51 UTCGHSA enrichment
  7. 2026-09-22 16:01 UTCEPSS rescore
  8. 2026-09-22 09:27 UTCEG score recompute
  9. 2026-09-22 09:27 UTCGHSA enrichment
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 07:04 UTCEG score recompute
  12. 2026-09-21 07:04 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 04:36 UTCEG score recompute
  15. 2026-09-20 04:36 UTCGHSA enrichment
  16. 2026-09-19 02:13 UTCEG score recompute
  17. 2026-09-19 02:12 UTCGHSA enrichment
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-17 23:45 UTCEG score recompute
  20. 2026-09-17 23:45 UTCGHSA enrichment
  21. 2026-09-16 21:02 UTCGHSA enrichment
  22. 2026-09-16 19:53 UTCEG score recompute
  23. 2026-09-16 19:53 UTCGHSA enrichment
  24. 2026-09-16 19:44 UTCEG score recompute
  25. 2026-09-16 19:44 UTCGHSA enrichment
Show 4 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-15 22:19 UTCEG score recompute
  3. 2026-09-15 22:04 UTCEG score recompute
  4. 2026-09-15 22:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76865?
CVE-2026-76865 is a medium vulnerability published on September 15, 2026. Netcore NR255-V version 1.5.130703 contains a null pointer dereference vulnerability in the QoS setter CGI handlers filterconndelcgi.c and grepriosetcgi.c due to unchecked atoi() results. An attacker can trigger the flaw by supplying crafted input to these handlers, causing a denial of service.
When was CVE-2026-76865 disclosed?
CVE-2026-76865 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76865 actively exploited?
CVE-2026-76865 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 62.3% of all scored CVEs.
What is the CVSS score of CVE-2026-76865?
CVE-2026-76865 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-76865?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76865, 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

Explore the affected products and dependency analysis for CVE-2026-76865

Explore →

Is Your Infrastructure Affected by CVE-2026-76865?

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

Book a Demo →Browse All CVEs