RTSP Heap Buffer Overflow Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101 (CVE-2026-75619) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-75619

RTSP Heap Buffer Overflow Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101

Answer in brief

CVE-2026-75619 records a Unknown severity vulnerability in RTSP Heap Buffer Overflow Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101. The current sources do not mark it as known exploited. The current feed maps TP-Link Systems Inc./Tapo C100 v5 (generic), TP-Link Systems Inc./Tapo C101 v5 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 19, 2026Updated Aug 19, 2026Source checked Aug 19, 2026First seen by HOL Aug 19, 2026Material review Aug 19, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TP-Link Systems Inc./Tapo C100 v5 (generic), TP-Link Systems Inc./Tapo C101 v5 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
TP-Link Systems Inc./Tapo C100 v5generic	>=0 <1.5.4 Build 260528 Rel.11462n	1.5.4 Build 260528 Rel.11462n
TP-Link Systems Inc./Tapo C101 v5generic	>=0 <1.5.4 Build 260528 Rel.11462n	1.5.4 Build 260528 Rel.11462n

Recommended response

Check inventory. Check lockfiles and deployed manifests for TP-Link Systems Inc./Tapo C100 v5, TP-Link Systems Inc./Tapo C101 v5.
Review the reported fix. Update TP-Link Systems Inc./Tapo C100 v5 to 1.5.4 Build 260528 Rel.11462n; TP-Link Systems Inc./Tapo C101 v5 to 1.5.4 Build 260528 Rel.11462n if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 19, 2026

Sources and claim methodology

Upstream source description

Tapo C100/C101 V5 contains a heap-based buffer overflow vulnerability in the RTSP service. An authenticated attacker on the local network can send specially crafted RTSP frame data containing oversized length values, resulting in out-of-bounds heap writes. Successful exploitation can crash the RTSP service and trigger a device reboot, resulting in a temporary denial-of-service condition.

Quoted source text, attributed separately from HOL analysis.