THREATPORT/VULNERABILITY/CVE-2021-25681
HIGH SEVERITY

CVE-2021-25681

Personal Phone Manager vulnerability

CVSS
7.5
EPSS
10.8%
EPSS pct
95th
Exploited
No known
AdTran Personal Phone Manager 10.8.1 software is vulnerable to an issue that allows for exfiltration of data over DNS. This could allow for exposed AdTran Personal Phone Manager web servers to be used as DNS redirectors to tunnel arbitrary data over DNS. NOTE: The affected appliances NetVanta 7060 and NetVanta 7100 are considered End of Life and as such this issue will not be patched.
Affected vendor
Adtran
Affected product
Personal Phone Manager
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2021-04-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 10.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2021-25681

  • Confirm whether Adtran Personal Phone Manager is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-25681.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-25681

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-25681 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2021-25681?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2021-25681.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH
CVE-2014-9674
Ubuntu Linux vulnerability
HIGH
CVE-2015-0008
Windows 7 vulnerability
HIGH
CVE-2015-0017
Internet Explorer vulnerability