CVE-2025-45861: totolink a3002r_firmware Classic Buffer Overflow
CVSS: 9.8v3.1CriticalAnalyzed
Published 13-05-2025Last modified 14-05-2025
Vulnerability summary
CVE-2025-45861 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in totolink a3002r_firmware. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.63%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 13-05-2025PublishedVulnerability first disclosed.
- 14-05-2025Last modifiedVulnerability information updated.
Description
TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the routername parameter in the formDnsv6 interface.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.03 pp
From 0.60% on 21-09-2026
21-09-202621-10-2026
EPSS score0.63%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIot Hack
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- a3002r_firmware4.0.0-b20230531.1404
1 vendor · 1 product