CVE-2024-28093: AdTran NetVanta · Use of Default Credentials
Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Mar 2024
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 26 Oct 2026.
What to do
AI-suggested
- Immediately disable the TELNET service on all affected AdTran NetVanta 3120 devices to eliminate the attack vector.
- Change all default credentials to strong, unique passwords if TELNET must remain enabled temporarily.
- Implement network segmentation and access control lists (ACLs) to restrict TELNET access only to trusted management networks.
- Monitor network traffic for unauthorized TELNET connections or suspicious activity targeting these devices.
- Regularly audit device configurations to ensure no default credentials remain in use.
- Stay informed on vendor advisories and apply firmware updates or patches as soon as they become available.
- Consider migrating management access to secure protocols such as SSH with multi-factor authentication.
- Employ intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts targeting this vulnerability.
Description
The TELNET service of AdTran NetVanta 3120 18.01.01.00.E devices is enabled by default, and has default credentials for a root-level account.