CVE-2021-26709 in the critical feed json
D-Link DSL-320B-D1 devices through EU_1.25 are prone to multiple Stack-Based Buffer Overflows that allow unauthenticated remote attackers t…
published 2021-04-07 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13498
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 40.1%
- EPSS 40.1% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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
Exploit prediction
40.08% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com http://packetstormsecurity.com/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
packetstormsecurity.com
/files/162133/D-Link-DSL-320B-D1-Pre-Authentication-Buffer-Overflow.html
exploit, third-party-advisory, vdb-entry
-
dlink.com
/en/security-bulletin
vendor-advisory
-
supportannouncement.us.dlink.com
/announcement/publication.aspx?name=SAP10216
vendor-advisory
-
seclists.org
/fulldisclosure/2021/Apr/15
mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-26709
- NVD CVE-2021-26709
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