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Fencer Vulns
critical 9.8

CVE-2023-26613 in the critical feed json

An OS command injection vulnerability in D-Link DIR-823G firmware version 1.02B05 allows unauthorized attackers to execute arbitrary operat…

published 2023-06-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30408

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
30.4%
EPSS 30.4% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

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.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
23 mo ago

Exploit prediction

30.42% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/726232111/VulIoT/tree/main/D-Link/DIR823G%20V1.0.2B05/excu_shell referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • d-link dir-823g

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.