What is CVE-2021-25681?

CVE-2021-25681 is a high-severity vulnerability in Adtran Netvanta 7060. CVSS score: 7.5/10. Published 2021-04-20.

How severe is CVE-2021-25681?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-25681 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Adtran Netvanta 7060

CVE-2021-25681

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.

EPSS: 0.108 (95.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Adtran Netvanta_7060
Adtran Netvanta_7100
Adtran Personal_phone_manager — versions 10.8.1
N/a — versions n/a

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-25681?: CVE-2021-25681 is a high-severity vulnerability in Adtran Netvanta 7060. CVSS score: 7.5/10. Published 2021-04-20.
How severe is CVE-2021-25681?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-25681 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.