How severe is CVE-2026-7855?

CVE-2026-7855 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-2026-7855 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7855?

CVE-2026-7855 affects Dlink Di-8100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7855?

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-2026-7855 have an EU (EUVD) identifier?

Yes. CVE-2026-7855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27432.

When was CVE-2026-7855 published?

CVE-2026-7855 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-7855

CVE-2026-7855 is a high-severity vulnerability in Dlink Di-8100 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% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27432
Weakness: CWE-119
Affected product: Dlink Di-8100 Firmware
Published: 2026-05-05
Last modified: 2026-06-17

Description

A vulnerability was detected in D-Link DI-8100 16.07.26A1. Affected by this issue is the function tggl_asp of the file /tggl.asp of the component HTTP Request Handler. Performing a manipulation of the argument Name results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

Frequently asked questions

What is CVE-2026-7855?: A vulnerability was detected in D-Link DI-8100 16.07.26A1. Affected by this issue is the function tggl_asp of the file /tggl.asp of the component HTTP Request Handler. Performing a manipulation of the argument Name results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.
How severe is CVE-2026-7855?: CVE-2026-7855 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-2026-7855 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7855?: CVE-2026-7855 affects Dlink Di-8100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7855?: 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-2026-7855 have an EU (EUVD) identifier?: Yes. CVE-2026-7855 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27432.
When was CVE-2026-7855 published?: CVE-2026-7855 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:di-8100_firmware:16.07.26a1:*:*:*:*:*:*:*

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