CVE-2025-45842: totolink nr1800x_firmware Out-of-bounds Write
CVSS: 8.8v3.1HighAnalyzed
Published 08-05-2025Last modified 12-05-2025
Vulnerability summary
CVE-2025-45842 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in totolink nr1800x_firmware. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.91%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 08-05-2025PublishedVulnerability first disclosed.
- 12-05-2025Last modifiedVulnerability information updated.
Description
TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid5g parameter in the setWiFiEasyCfg function.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.91%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
+0.04 pp
From 0.88% on 20-09-2026
20-09-202620-10-2026
EPSS score0.91%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundCve Key
Maturity: poc
Weaknesses
CWE · root cause- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Affected systems
Totolink1 product
- nr1800x_firmware9.1.0u.6681_b20230703
1 vendor · 1 product
References
3 links- www.totolink.netProduct