Home/CVE/TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2c
CVE

CVE-2025-28027

TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2c

TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 was found to contain a buffer overflow vulnerability in downloadFile.cgi.

HIGH · CVSS 7.3 EPSS 0.00117
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-121Stack-based Buffer Overflow
▤

Affected Products & Versions

4
totolink a830r firmwareall versions
totolink a950rg firmwareall versions
totolink a3000ru firmwareall versions
totolink a3100r firmwareall versions
⚠

Public Exploits & PoCs

2
poclocrian-lightning-dc7.notion.site · BufferOverflow2-19e8e5e2b1a2806db38bea19abb4630a?pvs=73locrian-lightning-dc7.notion.site
poclocrian-lightning-dc7.notion.site · CVE-2025-28027-BufferOverflow2-19e8e5e2b1a2806db38bea19ab...locrian-lightning-dc7.notion.site
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Apr 2025 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
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