CVE-2026-15316

CVE Enrichment

CVSS: 7.1 HIGH
EPSS: 0.24%
EPSS Percentile: 13.94%
CISA KEV: Not listed

Description

An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient validation, causing the affected device to crash or restart. Successful exploitation may temporarily disrupt HTTPS management and monitoring functionality, resulting in a denial-of-service (DoS) condition until the service recovers.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: f23511db-6c3e-4e32-a477-6aa17d310630
Published: 19-Aug-2026 05:16
Last Modified: 05-Sep-2026 00:26
EPSS Date: 2026-10-16
CWE: CWE-20

CVSS Vector


            CVSS:4.0                            AV:A /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:N /
                            VI:N /
                            VA:H /
                            SC:N /
                            SI:N /
                            SA:N /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

Affected Products / Versions

tp-link / tapo_c200_firmware
Version / affected range: * · before (exclusive) 1.4.6
cpe:2.3:o:tp-link:tapo_c200_firmware:*:*:*:*:*:*:*:*

References

Last enrichment sync: 17-Oct-2026 22:46
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

TP-Link fixed both issues, tracked as CVE-2026-15315 and CVE-2026-15316, in firmware V5_1.4.6 released in August. Weekly Cybersecurity Roundup: Ransomware Sentencing, AI Agent Attacks and Critical Flaws

CVE (2)

Malware (4)

Threat Actors (1)

MITRE ATT&CK (2)

Vendors (6)

Products (9)

Industries (1)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.