CVE-2021-26709

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 40.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-04-07 · updated 2026-06-17
Weakness: CWE-787

Description

D-Link DSL-320B-D1 devices through EU_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers to take over a device via the login.xgi user and pass parameters. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Affected products

D-Link Dsl-320B-D1: through eu_1.25

References

http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2021/Apr/15
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10216
https://www.dlink.com/en/security-bulletin
http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2021/Apr/15
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10216
https://www.dlink.com/en/security-bulletin

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