How severe is CVE-2025-25740?

CVE-2025-25740 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-25740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-25740?

CVE-2025-25740 affects Dlink Dir-853 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-25740?

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

Does CVE-2025-25740 have an EU (EUVD) identifier?

Yes. CVE-2025-25740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4129.

When was CVE-2025-25740 published?

CVE-2025-25740 was published on 2025-02-14 and last updated on 2026-06-17.

CVE-2025-25740

CVE-2025-25740 is a medium-severity vulnerability in Dlink Dir-853 Firmware with a CVSS 3.x base score of 5.5. 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-121.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4129
Weakness: CWE-121
Affected product: Dlink Dir-853 Firmware
Published: 2025-02-14
Last modified: 2026-06-17

Description

D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the PSK parameter in the SetQuickVPNSettings module.

Frequently asked questions

What is CVE-2025-25740?: D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the PSK parameter in the SetQuickVPNSettings module.
How severe is CVE-2025-25740?: CVE-2025-25740 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-25740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-25740?: CVE-2025-25740 affects Dlink Dir-853 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-25740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-25740 have an EU (EUVD) identifier?: Yes. CVE-2025-25740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4129.
When was CVE-2025-25740 published?: CVE-2025-25740 was published on 2025-02-14 and last updated on 2026-06-17.

References

https://dear-sunshine-ba5.notion.site/D-Link-DIR-853-2-1812386a66448036a1cce259beb30b04

Affected products (1)

cpe:2.3:o:dlink:dir-853_firmware:1.20b07:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-853 Firmware

CVE-2025-25746 — Critical (CVSS 9.8): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the Password…
CVE-2025-25744 — Critical (CVSS 9.8): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the Password…
CVE-2025-25742 — Critical (CVSS 9.8): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the…
CVE-2025-25745 — High (CVSS 8.8): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the Password…
CVE-2025-25743 — High (CVSS 7.2): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a command injection vulnerability in the SetVirtualServerSettings…
CVE-2025-25741 — Medium (CVSS 5.4): D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the…

All CVEs affecting Dlink Dir-853 Firmware →

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