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CVE-2025-15557: An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path at

33
Routine
HIGH 8.8UPGRADEUPGRADE

CVE-2025-15557 is a high-severity flaw (CVSS 8.8) affecting tapo h100 firmware, tapo p100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications.  This may compromise the confidentiality and integrity of device-to-cloud communication, enabling manipulation of device data or operations.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorAdjacent network
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.2% (top 90%)
CISA exploited listNo
WeaknessCWE-295
Published2026-02-05
Last modified2026-06-17
Publisher (CNA): TPLink · Vendor: tp-link

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

tp-link tapo h100 firmware UPGRADE
Affected: < 1.6.1
Fixed in: 1.6.1
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
tp-link tapo p100 firmware UPGRADE
Affected: < 1.2.6
Fixed in: 1.2.6
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-15557?

tapo h100 firmware: upgrade to 1.6.1; tapo p100 firmware: upgrade to 1.2.6. Exact commands for each OS are on this page.

Is CVE-2025-15557 being exploited?

CVE-2025-15557 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-15557 affect?

CVE-2025-15557 affects tapo h100 firmware, tapo p100 firmware. Severity is high (CVSS 8.8). An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications.  This may compromise the confide

How urgent is CVE-2025-15557?

Priority 33/100. High severity

Software pages

TP-Link vulnerabilities

Related CVEs

References

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