# CVE-2025-10123 — D-Link DIR-823X

> As of 2025-09-09, CVE-2025-10123 is a HIGH-severity vulnerability in D-Link DIR-823X, CVSS v3.1 7.3, EPSS 4.7% (91.6th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-10123, most recently “Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices”.

**Last updated:** 2025-09-09

## What is CVE-2025-10123?

A vulnerability was determined in D-Link DIR-823X up to 250416. Affected by this vulnerability is the function sub_415028 of the file /goform/set_static_leases. Executing manipulation of the argument Hostname can lead to command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

The record classifies CVE-2025-10123 under weakness classes [CWE-77](https://intel.threadlinqs.com/cwe/CWE-77), [CWE-74](https://intel.threadlinqs.com/cwe/CWE-74). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 396 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.3 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R`)
- **CVSS v4.0 base score:** 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **EPSS (FIRST):** 4.7% probability of exploitation in the next 30 days, higher than 91.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 9.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-09-09

## Is CVE-2025-10123 being exploited?

Weaponised exploit code for CVE-2025-10123 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 36 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2025/CVE-2025-10123.md) (trickest)

## Affected products and versions

- [D-Link](https://intel.threadlinqs.com/vendors/d-link): DIR-823X

## How to fix CVE-2025-10123

No vendor patch reference has been recorded for CVE-2025-10123 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-10123

1 tracked threat in the Threadlinqs corpus references CVE-2025-10123, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices](https://intel.threadlinqs.com/threat/TL-2026-3062) — HIGH · 2026-10-09

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10.

**Exploit and proof of concept**

- [github.com — exploit](https://github.com/lin-3-start/lin-cve/blob/main/DIR-823X/D-Link%20DIR-823X%20routers%20have%20an%20unauthorized%20command%20execution%20vulnerability.md#poc)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/?id.323093)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/?ctiid.323093)
- [vuldb.com — third party advisory](https://vuldb.com/?submit.645712)

**Issue tracking and product pages**

- [dlink.com — product](https://www.dlink.com/)

**Other references**

- [github.com — related](https://github.com/lin-3-start/lin-cve/blob/main/DIR-823X/D-Link%20DIR-823X%20routers%20have%20an%20unauthorized%20command%20execution%20vulnerability.md)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-10123
Full detection coverage and IOCs for threats exploiting CVE-2025-10123 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp