CVE-2026-41470: LIVE555 < 2026.04.22 RTSP Server Authorization Bypass via Session Token
LIVE555 before 2026.04.22 contains an authorization bypass vulnerability in RTSP session command handling that allows attackers to replay valid Session tokens from unauthenticated connections. Attackers who obtain a valid Session token can issue PLAY and TEARDOWN commands from a second TCP connection without authentication, causing server crashes through virtual function call errors or disrupting active streams by terminating victim sessions.
Security readout for executives and security teams
Plain-English summary
LIVE555 RTSP servers before 2026.04.22 can accept a reused valid session token from another unauthenticated connection. An attacker who obtains such a token could disrupt streaming or crash the server. This is primarily an availability and operational continuity risk.
Executive priority
Prioritize remediation for internet-accessible or business-critical streaming services. The main impact is service disruption, not data theft, but outages may affect monitoring, media delivery, or operational visibility.
Technical view
The flaw is an authorization bypass in RTSP session command handling. Replayed Session tokens can authorize PLAY and TEARDOWN over a second TCP connection without authentication, potentially causing virtual function call errors or terminating another client’s stream.
Likely exposure
Exposure is most likely where LIVE555 RTSP server code before 2026.04.22 is directly deployed or embedded in products reachable over a network.
Exploitation context
The bundle includes public technical and exploit-labeled material, but CISA KEV is false and no source states active exploitation. Attackers must first obtain a valid Session token, matching the high attack complexity rating.
Researcher notes
Evidence supports CWE-863 authorization bypass and availability impact. Affected scope is stated as LIVE555 before 2026.04.22; downstream embedded products are not enumerated in the bundle and should be verified separately.
Mitigation direction
Upgrade LIVE555 to 2026.04.22 or later where applicable.
Check vendor guidance for products embedding LIVE555.
Restrict RTSP service access to trusted networks.
Require authentication and session isolation where supported.
Monitor for unusual PLAY, TEARDOWN, crashes, or stream interruptions.
Validation and detection
Inventory systems and products using LIVE555 RTSP server code.
Confirm deployed LIVE555 versions are 2026.04.22 or later.
Review vendor advisories for embedded LIVE555 dependencies.
Check logs for cross-connection session reuse indicators.
Verify RTSP exposure is limited to approved networks.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-863 · source CWE mapping
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.