CVE-2023-26613
Published: 29 June 2023
Summary
CVE-2023-26613 is a critical-severity OS Command Injection (CWE-78) vulnerability in Dlink Dir-823G Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 1.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-26613 is an OS command injection vulnerability, tracked under CWE-78, that affects D-Link DIR-823G routers running firmware version 1.02B05. The flaw resides in the EXCU_SHELL endpoint and permits unauthenticated remote attackers to supply a crafted GET request that results in arbitrary operating-system command execution.
An attacker with network access can exploit the issue without credentials or user interaction, achieving full control over the device including the ability to read or modify data, alter device behavior, or use the router as a foothold for further attacks. The vulnerability carries a CVSS 3.1 base score of 9.8, reflecting its critical severity and ease of remote exploitation.
Public references include a D-Link security bulletin page and detailed proof-of-concept material hosted on GitHub that demonstrates the injection vector in the affected firmware.
The associated EPSS score currently stands at 0.6355 with a recorded peak of 0.6895, indicating sustained and elevated exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-30408
Vulnerability details
An OS command injection vulnerability in D-Link DIR-823G firmware version 1.02B05 allows unauthorized attackers to execute arbitrary operating system commands via a crafted GET request to EXCU_SHELL.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.