CVE-2020-9544

7.5 highEPSS 1.4%

High (7.5) in d-link dsl-2640b firmware. EPSS 1.4% chance of exploitation in the next 30 days.

An issue was discovered on D-Link DSL-2640B E1 EU_1.01 devices. The administrative interface doesn't perform authentication checks for a firmware-update POST request. Any attacker that can access the administrative interface can install firmware of their choice.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2020-03-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

d-link:dsl-2640b_firmware

References

https://ktln2.org/2020/03/05/cve-2020-9544/
https://www.dlink.com/en/security-bulletin
https://ktln2.org/2020/03/05/cve-2020-9544/
https://www.dlink.com/en/security-bulletin

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