Buffer overflow in D-Link Dir-825m
CVE-2026-82593
A flaw has been found in D-Link DIR-825M 1.1.8. This impacts the function sub_41802C of the file /boafrm/formLtefotaUpgradeFibocom of the component LTE Module Firmware Upgrade. This manipulation of the argument fota_url causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published 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: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% 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: 0.009 · change: +0.004
Affected products
- D-Link Dir-825m — versions 1.1.8
Weakness classification (CWE)
References
- vuldb.com/vuln/397088 (technical-description, vdb-entry)
- vuldb.com/vuln/397088/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82593 (third-party-advisory)
- vuldb.com/submit/892516 (third-party-advisory)
- github.com/Robots10/IoT_vlu/blob/main/reports/Dlink/formLtefotaUpgradeFibocom/f… (exploit, patch)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2026-82593?
- CVE-2026-82593 is a critical-severity vulnerability in D-Link Dir-825m, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-08-31.
- How severe is CVE-2026-82593?
- Critical severity. CVSS v3 base score is 9.9 out of 10.