CVE-2025-62867 identifies a missing authorization vulnerability in the Ergonet Cache product, specifically in versions up to and including 1.0.11. The vulnerability stems from improperly configured access control mechanisms within the ergonet-varnish-cache component, which is responsible for caching web content to improve performance. Due to this misconfiguration, an attacker with low-level privileges (PR:L) can remotely exploit the system without requiring user interaction (UI:N) to perform unauthorized operations that affect the integrity of cached data. The vulnerability does not impact confidentiality or availability but allows unauthorized modification or manipulation of cached content, which could lead to cache poisoning or serving incorrect data to end users. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) reflects that the attack can be launched over the network with low attack complexity and minimal privileges, without user interaction, and affects only integrity. No patches or known exploits are currently documented, indicating that organizations should proactively monitor for updates and apply fixes once available. The vulnerability is significant in environments where Ergonet Cache is used to accelerate web applications or services, as integrity compromises could undermine trust in delivered content or cause application errors.

For European organizations, this vulnerability poses a risk primarily to the integrity of cached data served by Ergonet Cache. Attackers exploiting this flaw could inject or alter cached content, potentially misleading users, corrupting application data, or facilitating further attacks such as phishing or malware distribution through manipulated cache responses. Sectors relying heavily on web performance optimization, such as e-commerce, finance, and public services, could experience reputational damage and operational disruptions. Although confidentiality and availability are not directly affected, the integrity compromise can indirectly impact business processes and user trust. Organizations with multi-tenant environments or those exposing cache management interfaces over the network are particularly vulnerable. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits over time. The medium severity suggests a moderate but non-negligible impact, warranting timely remediation to prevent exploitation.

To mitigate CVE-2025-62867, European organizations should implement the following specific measures: 1) Immediately review and tighten access control configurations on Ergonet Cache instances to ensure that only authorized administrators have access to cache management functions; 2) Restrict network access to cache management interfaces using firewalls or network segmentation, limiting exposure to trusted internal networks; 3) Monitor logs and audit trails for unusual cache modification activities that could indicate exploitation attempts; 4) Apply principle of least privilege to all users interacting with the cache system, minimizing the risk of low-privilege exploitation; 5) Stay updated with vendor advisories and apply patches promptly once released; 6) Consider deploying Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) to detect anomalous cache-related traffic; 7) Conduct regular security assessments and penetration testing focused on cache infrastructure to identify and remediate misconfigurations; 8) Educate system administrators about the risks of misconfigured access controls and best practices for cache security.