CVE-2025-63153: totolink a7000r_firmware Stack-based Buffer Overflow
CVSS: 7.5v3.1HighAnalyzed
Published 10-11-2025Last modified 12-11-2025
Vulnerability summary
CVE-2025-63153 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in totolink a7000r_firmware. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.40%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 10-11-2025PublishedVulnerability first disclosed.
- 12-11-2025Last modifiedVulnerability information updated.
Description
TOTOLink A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow in the ssid parameter of the urldecode 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
0.40%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
+0.03 pp
From 0.37% on 20-09-2026
20-09-202620-10-2026
EPSS score0.40%
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
- a7000r_firmware9.1.0u.6115_b20201022
1 vendor · 1 product