CVE-2025-25635: n/a
Source CVE Database V5
Not known to be exploited · CVSS 8.0 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Feb 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
AI-suggested
1. Immediate network segmentation to isolate TOTOlink A3002R devices from critical systems and sensitive data networks to limit potential lateral movement. 2. Restrict access to the router management interfaces and PPPoE configuration to trusted administrators only, preferably via secure management VLANs or out-of-band management channels. 3. Monitor network traffic for unusual PPPoE DNS configuration requests or malformed packets targeting the 'pppoe_dns1' parameter. 4. Implement strict input validation and anomaly detection on network devices to detect and block exploitation attempts. 5. Regularly audit and inventory network devices to identify all TOTOlink A3002R routers and assess their firmware versions. 6. Engage with TOTOlink or vendors for firmware updates or patches; if unavailable, consider temporary replacement or disabling vulnerable features. 7. Employ network intrusion detection/prevention systems (IDS/IPS) with updated signatures to detect buffer overflow attempts targeting '/bin/boa' or PPPoE interfaces. 8. Educate network administrators on the risks and signs of exploitation related to this vulnerability to ensure rapid incident response.
Description
TOTOlink A3002R V1.1.1-B20200824.0128 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the pppoe_dns1 parameter in the formIpv6Setup interface of /bin/boa.