How severe is CVE-2025-7836?

CVE-2025-7836 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-7836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-7836?

CVE-2025-7836 affects Dlink Dir-816l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-7836?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-7836 have an EU (EUVD) identifier?

Yes. CVE-2025-7836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21971.

When was CVE-2025-7836 published?

CVE-2025-7836 was published on 2025-07-19 and last updated on 2026-06-17.

CVE-2025-7836

CVE-2025-7836 is a medium-severity vulnerability in Dlink Dir-816l Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21971
Weakness: CWE-74
Affected product: Dlink Dir-816l Firmware
Published: 2025-07-19
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-7836?: 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.
How severe is CVE-2025-7836?: CVE-2025-7836 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-7836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-7836?: CVE-2025-7836 affects Dlink Dir-816l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-7836?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-7836 have an EU (EUVD) identifier?: Yes. CVE-2025-7836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21971.
When was CVE-2025-7836 published?: CVE-2025-7836 was published on 2025-07-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-816l_firmware:*:*:*:*:*:*:*:*

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