# CVE-2025-60671: D-Link DIR-823G command injection in timelycheck and sysconf binaries

Source: https://junglewise.ai/threats/cve-2025-60671-d-link-dir-823g-command-injection-in-timelycheck-and-sysconf  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-13. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2025-60671 · Severity: medium · CVSS 5.4 · Published 2025-11-13

A security vulnerability exists in the D-Link DIR-823G router, a device used to provide wireless internet connectivity for homes and small offices. An attacker who gains access to the device's file system can execute unauthorized commands, potentially leading to full control over the router's operations. This could allow an intruder to disrupt internet service or intercept network traffic.

Technologies: [D-Link DIR-823G](https://junglewise.ai/threats/technologies/dir-823g). Vendors: [D-Link](https://junglewise.ai/threats/vendors/d-link), [Dlink](https://junglewise.ai/threats/vendors/dlink).

## Quick answers

**Is CVE-2025-60671 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-60671 being exploited in the wild.

**How severe is CVE-2025-60671?** Medium severity, with a CVSS score of 5.4, published 13 November 2025.

**Which products and versions are affected?** D-Link DIR-823G DIR823G_V1.0.2B05_20181207.bin.

**Is there a fix for CVE-2025-60671?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-60671 attacked?** It is attacked over the network or with local access, in a network appliance.

**Am I affected by CVE-2025-60671?** Check whether you run D-Link DIR-823G or Dlink Dir-823g Firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A command injection vulnerability exists in the D-Link DIR-823G router firmware (specifically version DIR823G_V1.0.2B05_20181207.bin) within the 'timelycheck' and 'sysconf' binaries. The issue stems from improper validation of the '/var/system/linux_vlan_reinit' file content; the binaries only check for 'eth' or 'wlan' prefixes before passing the data to 'vsnprintf' and subsequently 'system()'. An attacker with the ability to write to this file—either through local access or by leveraging another vulnerability—can inject shell commands (e.g., using semicolons) to achieve arbitrary code execution with the privileges of the affected binaries. As of the advisory date, users should ensure their devices are not exposed to untrusted users and check for firmware updates from D-Link.

## Affected products

- D-Link DIR-823G DIR823G_V1.0.2B05_20181207.bin

## Timeline

- 2025-11-13: advisory: Initial disclosure of CVE-2025-60671

## References

- [https://github.com/yifan20020708/SGTaint-0-day/blob/main/DLink/DLink-DIR-823G/CVE-2025-60671.md](https://github.com/yifan20020708/SGTaint-0-day/blob/main/DLink/DLink-DIR-823G/CVE-2025-60671.md)
- [https://www.dlink.com/en](https://www.dlink.com/en)
- [https://www.dlink.com/en/security-bulletin/](https://www.dlink.com/en/security-bulletin/)

## Related threats

- [D-Link DIR-823G stack buffer overflow in SetStaticRouteSettings](https://junglewise.ai/threats/cve-2026-90680-d-link-dir-823g-stack-buffer-overflow-in-setstaticroutesettings)
- [D-Link DIR-823G privilege escalation in web interface](https://junglewise.ai/threats/cve-2026-15270-d-link-dir-823g-privilege-escalation-in-web-interface)
- [D-Link DIR-823G privilege escalation in vsftpd.conf](https://junglewise.ai/threats/cve-2026-11492-d-link-dir-823g-privilege-escalation-in-vsftpd-conf)
- [D-Link DIR-823G command injection in timelycheck and sysconf](https://junglewise.ai/threats/cve-2025-60675-d-link-dir-823g-command-injection-in-timelycheck-and-sysconf)