D-Link DIR-823X set_upnp sub_420618 os command injection
Published Feb 8, 2026
8.6
HIGHCVSS 4.0
EPSS 4.00%
Description
A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420618 of the file /goform/set_upnp. This manipulation of the argument upnp_enable causes os command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.
Affected products
-
- Version 250416StatusaffectedConstraints-
- Version
- 250416
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
1 other source (NVD) ▾
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
1 other source (NVD) ▾
AV:N/AC:L/Au:M/C:C/I:C/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 9, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Feb–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.00% (0.04001) | 90.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.77% (0.03770) | 88.49th | v5 (v2026.06.15) |
| Feb 9, 2026 | 0.19% (0.00189) | 40.67th | v4 (v2025.03.14) |
References (5)
- https://github.com/master-abc/cve/issues/31 exploitissue-trackingIssue Tracking
- https://vuldb.com/?ctiid.344876 signaturepermissions-requiredPermissions RequiredVDB Entry
- https://vuldb.com/?id.344876 vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
- https://vuldb.com/?submit.749263 third-party-advisoryThird Party AdvisoryVDB Entry
- https://www.dlink.com/ product
| Link | Providers | Tags |
|---|---|---|
| https://github.com/master-abc/cve/issues/31 | exploitissue-trackingIssue Tracking | |
| https://vuldb.com/?ctiid.344876 | signaturepermissions-requiredPermissions RequiredVDB Entry | |
| https://vuldb.com/?id.344876 | vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry | |
| https://vuldb.com/?submit.749263 | third-party-advisoryThird Party AdvisoryVDB Entry | |
| https://www.dlink.com/ | product |
Change history (0)
No recorded changes yet.