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Vulnerabilities

Vulnerability · CVE-2025-13399

A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic.

Published Jan 29, 2026 · catalog updated Feb 26, 2026 · TP-Link Systems Inc. VX800v v1.0

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-13399. EPSS is 0.17%. Act only if a listed version of TP-Link Systems Inc. VX800v v1.0 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.17%
Remediation
Version ranges on file
Affected products
vendor TP-Link Systems Inc. VX800v v1.0 0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)

A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to confidentiality, integrity, and availability of transmitted data.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor TP-Link Systems Inc. VX800v v1.0 0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)

How to fix CVE-2025-13399

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-13399. EPSS is 0.17%. Act only if a listed version of TP-Link Systems Inc. VX800v v1.0 is installed.

Which versions are affected?

Compare what you have installed with TP-Link Systems Inc. VX800v v1.0 0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702) 0 <800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702). Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.17%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 29, 2026 · EUVD

    Detected

    A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to confidentiality, integrity, and availability of transmitted data.

  2. Feb 26, 2026 · EUVD

    Updated

    A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to confidentiality, integrity, and availability of transmitted data.

Sources

  • CVE.orgVulnerability recordCVE-2025-13399

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-13399

    30-day exploitation probability 0.17%

    first.org
  • EUVDVulnerability recordEUVD-2025-206515

    A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to co

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026