Buffer overflow in Totolink N300rh
CVE-2026-10187
A vulnerability was detected in Totolink N300RH 6.1c.1353_B20190305. Affected by this issue is the function setWiFiBasicConfig of the file wireless.so of the component Web Management Interface. Performing a manipulation of the argument KeyStr results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (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: 0.073 (94.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.073 · newest: 0.073 · change: 0.000
Affected products
- Totolink N300rh — versions 6.1c.1353_B20190305
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/vuln/367468 (technical-description, vdb-entry)
- vuldb.com/vuln/367468/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-10187 (third-party-advisory)
- vuldb.com/submit/819971 (third-party-advisory)
- vuldb.com/submit/820133 (third-party-advisory)
- wx.mail.qq.com/s (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-10187?
- CVE-2026-10187 is a critical-severity vulnerability in Totolink N300rh, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2026-05-31.
- How severe is CVE-2026-10187?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2026-10187 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.