How severe is CVE-2026-7853?

CVE-2026-7853 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7853?

CVE-2026-7853 affects Dlink Di-8100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7853?

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

Does CVE-2026-7853 have an EU (EUVD) identifier?

Yes. CVE-2026-7853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27418.

When was CVE-2026-7853 published?

CVE-2026-7853 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-7853

CVE-2026-7853 is a critical-severity vulnerability in Dlink Di-8100 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
CVSS v4: 8.9
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27418
Weakness: CWE-119
Affected product: Dlink Di-8100 Firmware
Published: 2026-05-05
Last modified: 2026-06-17

Description

A weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Handler. This manipulation of the argument enable/time causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Frequently asked questions

What is CVE-2026-7853?: A weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Handler. This manipulation of the argument enable/time causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
How severe is CVE-2026-7853?: CVE-2026-7853 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7853?: CVE-2026-7853 affects Dlink Di-8100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-7853 have an EU (EUVD) identifier?: Yes. CVE-2026-7853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27418.
When was CVE-2026-7853 published?: CVE-2026-7853 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:*:*:*:*:*:*:*

More vulnerabilities in Dlink Di-8100 Firmware

CVE-2026-7854 — Critical (CVSS 9.8): A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function…
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