How severe is CVE-2025-10634?

CVE-2025-10634 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-2025-10634 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-10634?

CVE-2025-10634 primarily affects Dlink Dir-823x Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-10634?

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

Does CVE-2025-10634 have an EU (EUVD) identifier?

Yes. CVE-2025-10634 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29841.

When was CVE-2025-10634 published?

CVE-2025-10634 was published on 2025-09-18 and last updated on 2026-06-17.

CVE-2025-10634

CVE-2025-10634 is a medium-severity vulnerability in Dlink Dir-823x 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: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29841
Weakness: CWE-74
Affected product: Dlink Dir-823x Firmware
Published: 2025-09-18
Last modified: 2026-06-17

Description

A weakness has been identified in D-Link DIR-823X 240126/240802/250416. The impacted element is the function sub_412E7C of the file /usr/sbin/goahead of the component Environment Variable Handler. This manipulation of the argument terminal_addr/server_ip/server_port causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Frequently asked questions

What is CVE-2025-10634?: A weakness has been identified in D-Link DIR-823X 240126/240802/250416. The impacted element is the function sub_412E7C of the file /usr/sbin/goahead of the component Environment Variable Handler. This manipulation of the argument terminal_addr/server_ip/server_port causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.
How severe is CVE-2025-10634?: CVE-2025-10634 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-2025-10634 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-10634?: CVE-2025-10634 primarily affects Dlink Dir-823x Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-10634?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-10634 have an EU (EUVD) identifier?: Yes. CVE-2025-10634 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29841.
When was CVE-2025-10634 published?: CVE-2025-10634 was published on 2025-09-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:dlink:dir-823x_firmware:240126:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-823x_firmware:240802:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-823x_firmware:250416:*:*:*:*:*:*:*

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