TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the…
Priority HIGH 82CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00629 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-42547
- 2026-10-03 Alias added: GHSA-48cg-rxmx-xw45
- 2026-10-29 EPSS moved to the 50th–90th percentile
References
More TOTOLINK A3100r Firmware vulnerabilities
- TI-2025-20766 An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
- TI-2025-20692 TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-20691 TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-20690 TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R… CVSS 3.1CRITICAL 9.8
- TI-2024-28488 TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the… CVSS 3.1CRITICAL 9.8
- TI-2025-28850 TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow via the priority parameter in… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-42547 · CVE Program
- CVE-2024-42547 · NVD
- FIRST EPSS
- GHSA-48cg-rxmx-xw45 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences