How severe is CVE-2026-4555?

CVE-2026-4555 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-2026-4555 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4555?

CVE-2026-4555 affects Dlink Dir-513 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4555?

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-2026-4555 have an EU (EUVD) identifier?

Yes. CVE-2026-4555 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14329.

When was CVE-2026-4555 published?

CVE-2026-4555 was published on 2026-03-22 and last updated on 2026-06-17.

CVE-2026-4555

CVE-2026-4555 is a high-severity vulnerability in Dlink Dir-513 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14329
Weakness: CWE-787
Affected product: Dlink Dir-513 Firmware
Published: 2026-03-22
Last modified: 2026-06-17

Description

A weakness has been identified in D-Link DIR-513 1.10. The impacted element is the function formEasySetTimezone of the file /goform/formEasySetTimezone of the component boa. This manipulation of the argument curTime causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2026-4555?: A weakness has been identified in D-Link DIR-513 1.10. The impacted element is the function formEasySetTimezone of the file /goform/formEasySetTimezone of the component boa. This manipulation of the argument curTime causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2026-4555?: CVE-2026-4555 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-2026-4555 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4555?: CVE-2026-4555 affects Dlink Dir-513 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4555?: 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-2026-4555 have an EU (EUVD) identifier?: Yes. CVE-2026-4555 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14329.
When was CVE-2026-4555 published?: CVE-2026-4555 was published on 2026-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-513_firmware:1.10:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-513 Firmware

CVE-2025-70245 — Critical (CVSS 9.8): Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetWizardSelectMode.
CVE-2025-70233 — Critical (CVSS 9.8): Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetEnableWizard.
CVE-2025-70232 — Critical (CVSS 9.8): Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetMACFilter.
CVE-2025-70231 — Critical (CVSS 9.8): D-Link DIR-513 version 1.10 contains a critical-level vulnerability. When processing POST requests related to…
CVE-2025-70230 — Critical (CVSS 9.8): Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetDDNS.
CVE-2025-70229 — Critical (CVSS 9.8): Stack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSchedule.

All CVEs affecting Dlink Dir-513 Firmware →

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