How severe is CVE-2026-5980?

CVE-2026-5980 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-2026-5980 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5980?

CVE-2026-5980 affects Dlink Dir-605l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5980?

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-2026-5980 have an EU (EUVD) identifier?

Yes. CVE-2026-5980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21187.

When was CVE-2026-5980 published?

CVE-2026-5980 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2026-5980

CVE-2026-5980 is a high-severity vulnerability in Dlink Dir-605l 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% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21187
Weakness: CWE-119
Affected product: Dlink Dir-605l Firmware
Published: 2026-04-09
Last modified: 2026-06-17

Description

A flaw has been found in D-Link DIR-605L 2.13B01. Affected by this issue is the function formSetMACFilter of the file /goform/formSetMACFilter of the component POST Request Handler. This manipulation of the argument curTime causes buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2026-5980?: A flaw has been found in D-Link DIR-605L 2.13B01. Affected by this issue is the function formSetMACFilter of the file /goform/formSetMACFilter of the component POST Request Handler. This manipulation of the argument curTime causes buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2026-5980?: CVE-2026-5980 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-2026-5980 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5980?: CVE-2026-5980 affects Dlink Dir-605l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5980?: 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-2026-5980 have an EU (EUVD) identifier?: Yes. CVE-2026-5980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21187.
When was CVE-2026-5980 published?: CVE-2026-5980 was published on 2026-04-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-605l_firmware:2.13b01:*:*:*:*:*:*:*

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