CVE-2024-42546 json
TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the password parameter in the loginauth function.
published 2024-08-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-39664
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the password parameter in the loginauth function.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3100R/loginauth_password.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- totolink a3100r_firmware
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3100R/loginauth_password.md
exploit, third-party-advisory
Sources
- CVE List CVE-2024-42546
- NVD CVE-2024-42546
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.