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Vulnerabilities

Vulnerability · CVE-2025-45843

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.

Published May 8, 2025 · catalog updated May 12, 2025 · TOTOLINK NR1800X V9.1.0u.6681_B20230703 was

Check if you run it

No confirmed exploitation is on record for CVE-2025-45843. EPSS is 0.71%. Act only if a listed version of TOTOLINK NR1800X V9.1.0u.6681_B20230703 was is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (TOTOLINK NR1800X V9.1.0u.6681_B20230703 was).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.71%
Remediation
Vendor / distro source
Affected products
vendor n/a n/a n/a

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a n/a n/an/a

How to fix CVE-2025-45843

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-45843. EPSS is 0.71%. Act only if a listed version of TOTOLINK NR1800X V9.1.0u.6681_B20230703 was is installed.

Which versions are affected?

Compare what you have installed with n/a n/a n/a n/a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.71%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 8, 2025 · EUVD

    Detected

    TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.

  2. May 12, 2025 · EUVD

    Updated

    TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.

Sources

  • CVE.orgVulnerability recordCVE-2025-45843

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-45843

    30-day exploitation probability 0.7%

    first.org
  • EUVDVulnerability recordEUVD-2025-14018

    TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.