CVE-2025-63463: totolink lr350_firmware Stack-based Buffer Overflow
CVSS: 7.5v3.1HighAnalyzed
Published 31-10-2025Last modified 03-11-2025
Vulnerability summary
CVE-2025-63463 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in totolink lr350_firmware. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.41%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 31-10-2025PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the wifiOff parameter in the sub_4232EC function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
+0.03 pp
From 0.39% on 20-09-2026
20-09-202620-10-2026
EPSS score0.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundVulnbycola
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- lr350_firmware9.3.5u.6369_b20220309
1 vendor · 1 product