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CVE-2026-1328

29
FAUCET Score

CVE-2026-1328 describes a critical buffer overflow vulnerability in the Totolink NR1800X router, specifically affecting firmware version 9.1.0u.6279_B20210910. This flaw resides within the setWizardCfg function of the /cgi-bin/cstecgi.cgi component, triggered by manipulating the 'ssid' argument in a POST request. Rated with a CVSS score of 8.8 (High), this vulnerability can be exploited remotely with low attack complexity and requires only low privileges, potentially leading to high impact on confidentiality, integrity, and availability. The public availability of exploit code further elevates its risk. While exploit code is publicly available, there is currently no evidence of active exploitation in the wild, nor are there Metasploit or Nuclei modules. Community discussion and media coverage for this CVE are minimal, which is typical for the vast majority of reported vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
9.1.0u.6279_b20210910CPE matchmatch criteria
cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6279_b20210910:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.4HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
52.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 45th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lavender-bicycle-a5a.notion.site / TOTOLINK-NR1800X-setWizardCfg-2e453a41781f80568a54c9368082fbe9
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
totolink.net
Product