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CVE-2023-36340

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the...

9.8 Critical

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.85%Up 0.8 points since Oct 16, 2023
90%50%10%1%

What each source reports

NVD Score used 9.8

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Record
CVE-2023-36340
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Record
CVE-2023-36340
Updated
2026-11-02
EUVDEUVD-2023-40308 No score

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Record
EUVD-2023-40308
Updated
2026-11-03
GitHub AdvisoriesGHSA-ff5g-xv9r-r383 9.8

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the...

TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the function loginAuth.

Record
GHSA-ff5g-xv9r-r383
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-36340 is a critical vulnerability (CVSS 9.8) in Totolink Nr1800x Firmware, published October 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.

References

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