CVE•Published 2021-04-20•Modified 2026-07-09•1 article on news•6 live references•NVD data
CVE-2021-25681Adtran · Personal_phone_manager
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS percentile
96
Exploit Prediction Scoring System · top 4% of all CVEs
Description
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.
Timeline
Published 2021-04-20
Modified 2026-07-09
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2021-25681Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Adtran Personal Phone Manager" version:"10.8.1"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Personal Phone Manager"HTTP body or banner mentions "Personal Phone Manager" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-25681Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-25681Censys host search filtered to this CVE id.
grep.app
CVE-2021-25681Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-25681GitHub code search for direct mentions.
Google dork
"CVE-2021-25681" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.