Buffer overflow in D-Link Dir-825
CVE-2026-96891
A vulnerability was identified in D-Link DIR-825 3.00b32. Affected is the function tunnel_set_params of the file tunnel.c of the component rp-l2tp. The manipulation of the argument peer_hostname leads to out-of-bounds write. The attack may be initiated remotely.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- D-Link Dir-825 — versions 3.00b32
Weakness classification (CWE)
References
- tzh00203.notion.site/D-Link-DIR-825-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb… (related)
- vuldb.com/cve/CVE-2026-96891 (third-party-advisory)
- vuldb.com/submit/906301 (third-party-advisory)
- vuldb.com/vuln/409134 (technical-description, vdb-entry)
- vuldb.com/vuln/409134/cti (signature, permissions-required)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2026-96891?
- CVE-2026-96891 is a critical-severity vulnerability in D-Link Dir-825, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2026-09-24.
- How severe is CVE-2026-96891?
- Critical severity. CVSS v3 base score is 9.8 out of 10.