RCE in D-Link Dir-823x
CVE-2025-10634
A weakness has been identified in D-Link DIR-823X 240126/240802/250416. The impacted element is the function sub_412E7C of the file /usr/sbin/goahead of the component Environment Variable Handler. This manipulation of the argument terminal_addr/server_ip/server_port causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.074 (94.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.074 · newest: 0.074 · change: 0.000
Affected products
- D-Link Dir-823x — versions 240126, 240802, 250416
- Dlink Dir-823x
- Dlink Dir-823x Firmware — versions 240126, 240802, 250416
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/Cpppq43/D-Link/blob/main/DIink-DIR-823x.md (related, Exploit, Third Party Advisory)
- pan.baidu.com/s/1dWnXEa58P0KHw53L9U_PoQ (exploit, Broken Link)
- www.dlink.com/ (Product, product)
Frequently asked questions
- What is CVE-2025-10634?
- CVE-2025-10634 is a medium-severity vulnerability in D-Link Dir-823x, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2025-09-18.
- How severe is CVE-2025-10634?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2025-10634 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.