CVE-2026-90791 Vulnerability Analysis & Exploit Details

CVE-2026-90791
Vulnerability Scoring

6.3
/10
High Risk

If left unpatched, CVE-2026-90791 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2026-90791 Details

Status: Deferred

Last updated: 🕒 15 Sep 2026, 15:17 UTC
Originally published on: 🕒 14 Sep 2026, 15:17 UTC

Time between publication and last update: 1 days

CVSS Release: version 3

CVSS3 Source

cna@vuldb.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVE-2026-90791 Vulnerability Summary

CVE-2026-90791: A vulnerability was detected in GPAC up to f1219cde. This vulnerability affects the function gf_node_unregister of the file scenegraph/base_scenegraph.c of the component MP4Box. The manipulation results in use after free. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version abi-16.23 is able to resolve this issue. The patch is identified as 9eb40df4448b88d6a6ce3454657c06f47eff0b24. Upgrading the affected component is recommended.

Assessing the Risk of CVE-2026-90791

Access Complexity Graph

The exploitability of CVE-2026-90791 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-90791

With low attack complexity and no required privileges, CVE-2026-90791 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-90791, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-90791, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2026-90791 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2026-90791 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2026-90791 may slightly degrade system performance without fully affecting service availability.

CVE-2026-90791 References

External References

CWE Common Weakness Enumeration

CWE-416

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