Vulnerability · Published Sep 1, 2025 · Assigned by VulDB
CVE-2025-9780TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in A702R from TOTOLINK. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 46.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw has been found in TOTOLINK A702R 4.0.0-B20211108.1423. Affected by this issue is the function sub_419BE0 of the file /boafrm/formIpQoS. This manipulation of the argument mac causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-322082 | TOTOLINK A702R formIpQoS sub_419BE0 buffer overflow vdb-entry, technical-description
- VDB-322082 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #640988 | TOTOLINK A702R V4.0.0-B20211108.1423 Buffer Overflow third-party-advisory
- https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formIpQoS/formIpQoS.md related
- https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formIpQoS/formIpQoS.md#poc exploit
- https://www.totolink.net/ product