CVE-2021-25679

Name: CVE-2021-25679
Creator: NVD / NIST
Published: 2021-04-20T12:15:13.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 2.86%

Last modified Jun 17, 2026

CVE-2021-25679 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The AdTran Personal Phone Manager software is vulnerable to an authenticated stored cross-site scripting (XSS) issues. These issues impact at minimum versions 10.8.1 and below but potentially impact later versions as well since they have not previously been disclosed. EPSS estimates a 2.86% chance of exploitation in the next 30 days.

Description

The AdTran Personal Phone Manager software is vulnerable to an authenticated stored cross-site scripting (XSS) issues. These issues impact at minimum versions 10.8.1 and below but potentially impact later versions as well since they have not previously been disclosed. Only version 10.8.1 was able to be confirmed during primary research. NOTE: The affected appliances NetVanta 7060 and NetVanta 7100 are considered End of Life and as such this issue will not be patched

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

2.86%

84.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Adtran	Personal Phone Manager	<= 10.8.1

References

http://adtran.comVendor Advisory
http://packetstormsecurity.com/files/162268/Adtran-Personal-Phone-Manager-10.8.1-Persistent-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://depthsecurity.com/blog/vulnerability-disclosureThird Party Advisory
https://github.com/3ndG4me/AdTran-Personal-Phone-Manager-Vulns/blob/main/CVE-2021-25679.mdExploit, Third Party Advisory
http://adtran.comVendor Advisory
http://packetstormsecurity.com/files/162268/Adtran-Personal-Phone-Manager-10.8.1-Persistent-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://depthsecurity.com/blog/vulnerability-disclosureThird Party Advisory
https://github.com/3ndG4me/AdTran-Personal-Phone-Manager-Vulns/blob/main/CVE-2021-25679.mdExploit, Third Party Advisory

Timeline

Published: Apr 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25679?

How severe is CVE-2021-25679?

CVE-2021-25679 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 2.86% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25679?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25679?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST