SummaryAI-written · claude-haiku-5-5AI-written · claude-haiku-5-5Written by a language model from the source data on this page. Not reviewed by a person. Generated 23 Oct 2026.
Adobe ColdFusion contains a Java deserialization flaw in its bundled Apache BlazeDS library, which affects ColdFusion 2016 Update 3 and earlier, ColdFusion 11 Update 11 and earlier, and ColdFusion 10 Update 22 and earlier. An attacker who can reach the affected ColdFusion service over the network, without needing credentials or any user interaction, can exploit the flaw to achieve arbitrary code execution.
Official description · NVDSource dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. Copied from NVD.
Adobe ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier, ColdFusion 10 Update 22 and earlier have a Java deserialization vulnerability in the Apache BlazeDS library. Successful exploitation could lead to arbitrary code execution.
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown.Breakdown
73.7 / 100
Exploited
Yes, in CISA KEV
Reports
1
Tactics
2/15
How an attack unfolds
Based on MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. mappings. Select a step to see the evidence.
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 16 months after disclosure. Public exploit code (Exploit-DB) appeared 9 months after disclosure.
CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
2 TechniqueOne specific attacker behaviour in MITRE ATT&CK, such as T1190 “Exploit Public-Facing Application”. IDs with a dot, like T1059.004, are sub-techniques., grouped by TacticThe attacker’s goal at a stage of an attack in MITRE ATT&CK, such as Initial Access or Persistence. Each technique belongs to one or more tactics. in kill-chain order, 2 cited passagesSourceSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset.1AIAI-writtenWritten by a language model from the source data on this page. Not reviewed by a person.1
Initial AccessTA0001
Exploit Public-Facing ApplicationT1190Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
Source dataSource dataCopied from an authoritative feed: NVD, CVE.org, CISA KEV, FIRST EPSS or MITRE CTID mappings, or labelled by the annotators of a published dataset. CTID attack_to_cve (Phase 1); claude-haiku-5-5: Network-reachable web service deserialization flaw.MITRE CTID mapping of the CVE · uncategorised
ExecutionTA0002
Command and Scripting InterpreterT1059Medium Confidence (technique links)How sure Patchfirst is that an ATT&CK technique applies to this CVE. High and medium links are shown by default; low ones come from early or generic mappings, text matching, or contradict the CVE’s details.
AI-written · claude-haiku-5-5AI-written · claude-haiku-5-5Written by a language model from the source data on this page. Not reviewed by a person. claude-haiku-5-5: Arbitrary code execution is the direct impact.AI mapping from the description · primary impact
Arbitrary code execution is the direct impact
Successful exploitation could lead to arbitrary code execution
0 rules for this CVE · 244 general rules for its techniques
Rules for this CVE
0Sigma ruleAn open, vendor-neutral detection rule for log data. Security teams convert Sigma rules into searches for their own SIEM. that reference CVE-2017-3066 directly.
CVE-specific rules are not available in this build. Search SigmaHQ ↗
General rules for this CVE’s techniques
These detect the technique in general, not this specific vulnerability.
Command and Scripting InterpreterT105995general rules
Named in 1 threat reportMachineMachine-matchedFound by keyword or pattern matching over threat-report text. Not reviewed by a person. Exact CVE id found in the report text.
1 reportCisco TalosAug 2018
Reports are matched by finding the exact id CVE-2017-3066 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.
…we first observed this actor exploiting vulnerabilities in Apache Struts, we've also observed what we believe to the same individual exploiting an Oracle WebLogic server vulnerability (CVE-2017-10271), and also exploiting CVE-2017-3066, a critical Java deserialization vulnerability in the Adobe ColdFusion…