CVE-2024-7157 json
TOTOLINK A3100R getSaveConfig buffer overflow
published 2024-07-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-48125
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.4%
- EPSS 7.4% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been classified as critical. This affects the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-272571. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
7.37% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3100R/getSaveConfig.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- TOTOLINK A3100R
- totolink a3100r_firmware
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3100R/getSaveConfig.md
exploit
-
vuldb.com
/?id.272571
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.272571
signature, permissions-required, third-party-advisory
-
vuldb.com
/?submit.377542
third-party-advisory
Sources
- CVE List CVE-2024-7157
- NVD CVE-2024-7157
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