VulnerabilityModified

CVE-2021-26709

CRITICAL 9.8EPSS 40.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 40.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 40.08% probability · 99th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-787
Affected: d-link/dsl-320b-d1
Source: cve@mitre.org

EPSS trend

EPSS 40.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Apr/15Mailing List, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10216Vendor Advisory
https://www.dlink.com/en/security-bulletinVendor Advisory
http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Apr/15Mailing List, Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10216Vendor Advisory
https://www.dlink.com/en/security-bulletinVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.