Buffer overflow in D-Link Dir-895l
CVE-2026-100740
A vulnerability was detected in D-Link DIR-895L A1_102b07. Impacted is the function tunnel_set_params of the file tunnel.c of the component L2TP Control Channel Parser. Performing a manipulation results in out-of-bounds write. The attack may be initiated remotely. The exploit is now public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.002
Affected products
- D-Link Dir-895l — versions A1_102b07
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-410614 | D-Link DIR-895L L2TP Control Channel tunnel.c tunnel_set_params out-of-bounds write (technical-description, vdb-entry)
- VDB-410614 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- CVE-2026-100740 | CVE Analysis and Report (third-party-advisory)
- Submit #906303 | D-Link DIR895LA1_102b07 A1_102b07 Out-of-bounds Write (third-party-advisory)
- tzh00203.notion.site/D-Link-DIR-895L-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33c… (exploit)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2026-100740?
- CVE-2026-100740 is a critical-severity vulnerability in D-Link Dir-895l, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-09-27.
- How severe is CVE-2026-100740?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2026-100740 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.