Skip to main content
VulnerabilityPublished Updated

CVE-2024-28093: AdTran NetVanta · Use of Default Credentials

Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Mar 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

  1. Immediately disable the TELNET service on all affected AdTran NetVanta 3120 devices to eliminate the attack vector.
  2. Change all default credentials to strong, unique passwords if TELNET must remain enabled temporarily.
  3. Implement network segmentation and access control lists (ACLs) to restrict TELNET access only to trusted management networks.
  4. Monitor network traffic for unauthorized TELNET connections or suspicious activity targeting these devices.
  5. Regularly audit device configurations to ensure no default credentials remain in use.
  6. Stay informed on vendor advisories and apply firmware updates or patches as soon as they become available.
  7. Consider migrating management access to secure protocols such as SSH with multi-factor authentication.
  8. 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.

References

Community reviews

Loading reviews…