What is the CVSS score of CVE-2026-1328?

CVE-2026-1328 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Nr1800x Firmware are affected by CVE-2026-1328?

Organizations using A vulnerability face significant risk from CVE-2026-1328, a buffer overflow vulnerability rated CVSS 8.8.

Is there a public PoC exploit available for CVE-2026-1328?

Yes, a public proof-of-concept exploit is available for CVE-2026-1328. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-1328?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Nr1800x Firmware CVE-2026-1328

HIGH

Buffer Overflow (CWE-119)

2026-01-22 cna@vuldb.com

Buffer Overflow Nr1800x Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 29, 2026 - 17:47 vuln.today

Public exploit code

CVE Published

Jan 22, 2026 - 15:16 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

AnalysisAI

Buffer overflow in Totolik NR1800X firmware allows authenticated remote attackers to achieve complete system compromise through malformed SSID parameters in the setWizardCfg POST handler. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to remote code execution. This vulnerability requires valid credentials but presents critical risk given the device's network exposure and lack of mitigation options.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Nr1800X Firmware. A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.