Dashboard / CVE-2026-10099

CVE-2026-10099

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 43/100
Published: 2026-05-29 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: None

Description

XX-Net V5.16.6 contains a WebSocket frame parsing vulnerability in the WebSocket_receive_worker routine of simple_http_server.py that allows attackers to cause corrupted application data by sending unmasked WebSocket frames. The server unconditionally reads 4 bytes as a masking key regardless of whether the MASK bit is set in the frame header, causing the first 4 bytes of payload to be consumed as a mask key and the remaining payload to be incorrectly XOR-decoded, resulting in data corruption alongside missing RSV bit, opcode, and FIN fragmentation validations.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
XX-net XX-Net 0
XX-net XX-Net 0

References & Advisories (4)

Bug Bounty Relevance

43 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

4.0 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.12%
Raw Score 0.001250
Percentile 2.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00125
2026-11-12
0.00125
2026-11-10
0.00125
2026-11-09
0.00125
2026-11-08
0.00125

Intelligence Sources

mitre ref →

External Links