Adobe ColdFusion EUVD-2026-56548

The CVSS vector (PR:N/UI:N/AV:N/AC:L) confirms no authentication is required, no user interaction is needed, and the attack is reachable over the network under standard conditions. The description does not reference any non-default configuration, specific feature flag, or deployment mode as a prerequisite - the flaw appears to exist in standard ColdFusion 2023 and 2025 installations. Limiting factors include: the impact ceiling is low (C:L/I:L/A:L), meaning exploitation does not yield full system compromise; the Scope is Unchanged, so lateral movement to other systems is not directly enabled by this flaw alone; and the specific resources accessible via the bypass are not enumerated in available data, which may constrain practical attacker utility. ColdFusion instances that are not directly internet-exposed or are protected by a WAF or reverse proxy with strict access controls face reduced risk.

The CVSS 7.3 score is supported by a meaningful vector: AV:N (internet-reachable), AC:L (no special conditions), PR:N (unauthenticated), and UI:N (no victim interaction required), making this an attractive target for opportunistic scanning. However, the Scope remains Unchanged (S:U) and all three impact metrics are Low (C:L/I:L/A:L), capping the direct blast radius - a successful attacker gains partial access rather than full system compromise. No EPSS score was provided in the intelligence sources, so exploitation probability cannot be quantified. The vulnerability is not listed in the CISA KEV catalog, and no public exploit code has been identified, both of which reduce the immediate operational urgency compared to the raw CVSS score alone. ColdFusion installations exposed directly to the internet without network-layer access controls represent the highest-priority attack surface. The combination of no-auth, low-complexity, network-vector exploitation with a publicly disclosed advisory elevates this above theoretical - patching or mitigation should be prioritized before exploit code emerges.

An unauthenticated remote attacker identifies an internet-exposed ColdFusion 2023 or 2025 instance, then sends a crafted HTTP request that satisfies the flawed authorization logic - for example, by manipulating request parameters, headers, or endpoint paths in a way that bypasses the intended access control check. The attacker gains limited read access to restricted data and limited write capability to protected resources, potentially enabling data exfiltration or partial content manipulation without requiring any credentials or victim interaction. No public proof-of-concept has been identified at time of analysis, but the low-complexity network vector makes this a viable target for automated scanning once exploit details emerge.