CVE-2025-7836
D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
- Record
CVE-2025-7836- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P - CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R - CVSS 3.0
- 6.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R - CVSS 2.0
- 6.5
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR - Weakness
- CWE-77, CWE-74
- Updated
- 2026-11-02
EUVDEUVD-2025-21971
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
- Record
EUVD-2025-21971- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fwww-pvgq-792r
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical....
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
- Record
GHSA-fwww-pvgq-792r- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-74
- Updated
- 2026-11-02
NVD
A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
- Record
CVE-2025-7836- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-74, CWE-77
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-7836 is a medium vulnerability (CVSS 5.3) in D-link Dir-816l, published July 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.22%, the 93rd percentile. No source names a fixed version.