CVE-2026-1200Public exploitNetwork attack vector

Memory corruption via uninitialized RTSP bitrate

Published Feb 18, 2026 · Updated Feb 18, 2026

Uninitialized-value use in LIVE555 Streaming Media 2026.04.01 allows remote authenticated users to corrupt memory through RTSP requests. The OnDemandServerMediaSubsession::getStreamParameters path fails to initialize streamBitrate when stream-source creation returns null, then uses that value in a send-buffer resize calculation. The public demonstration used an RTSP server on Linux and showed uninitialized reads; code execution was not demonstrated.

CVSS severity6.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized-value use in LIVE555 Streaming Media 2026.04.01 allows remote authenticated users to corrupt memory through RTSP requests. The OnDemandServerMediaSubsession::getStreamParameters path fails to initialize streamBitrate when stream-source creation returns null, then uses that value in a send-buffer resize calculation. The public demonstration used an RTSP server on Linux and showed uninitialized reads; code execution was not demonstrated.

The record

CVE
CVE-2026-1200
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
Live Networks, Inc.
Product
LIVE555 Streaming Media
Classifications
CWE-824, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Live Networks, Inc. · LIVE555 Streaming Mediaversion=0 <*

Published CVSS scores

6.3Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-824Access of Uninitialized Pointer
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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