How severe is CVE-2025-6158?

CVE-2025-6158 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-6158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6158?

CVE-2025-6158 affects Dlink Dir-655 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6158?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-6158 have an EU (EUVD) identifier?

Yes. CVE-2025-6158 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18473.

When was CVE-2025-6158 published?

CVE-2025-6158 was published on 2025-06-17 and last updated on 2026-06-17.

CVE-2025-6158

CVE-2025-6158 is a high-severity vulnerability in Dlink Dir-655 Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18473
Weakness: CWE-119
Affected product: Dlink Dir-655 Firmware
Published: 2025-06-17
Last modified: 2026-06-17

Description

A vulnerability classified as critical has been found in D-Link DIR-665 1.00. This affects the function sub_AC78 of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack 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-2025-6158?: A vulnerability classified as critical has been found in D-Link DIR-665 1.00. This affects the function sub_AC78 of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack 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-2025-6158?: CVE-2025-6158 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-6158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6158?: CVE-2025-6158 affects Dlink Dir-655 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-6158 have an EU (EUVD) identifier?: Yes. CVE-2025-6158 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18473.
When was CVE-2025-6158 published?: CVE-2025-6158 was published on 2025-06-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-655_firmware:1.00:*:*:*:*:*:*:*

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CVE-2019-16920 — Critical (CVSS 9.8): Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The…
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