Spark Firewalls R82 — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/spark-firewalls-r82/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 27 May 2026 14:32:27 +0000Multiple Vulnerabilities in Check Point Productshttps://feed.craftedsignal.io/briefs/2026-05-checkpoint-vulns/Wed, 27 May 2026 14:32:27 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-checkpoint-vulns/Multiple vulnerabilities in Check Point Security Gateways and Spark Firewalls allow for remote denial of service, data confidentiality breaches, and data integrity compromise.Multiple vulnerabilities have been identified in Check Point products, specifically Security Gateways and Spark Firewalls. These vulnerabilities can lead to significant security breaches, including remote denial-of-service (DoS) attacks, unauthorized access to sensitive data, and modification of data integrity. The affected products include Security Gateways versions R81.20 without hotfix 141, R82 without hotfix 103, and R82.10 without hotfix 19, as well as Spark Firewalls versions R81 prior to R81.10.17 and R82 prior to R82.00.10. Successful exploitation of these vulnerabilities could allow attackers to disrupt services, steal confidential information, or manipulate critical data.

Attack Chain

  1. Attacker identifies a vulnerable Check Point Security Gateway or Spark Firewall running an unpatched version.
  2. The attacker crafts a malicious request to exploit one of the vulnerabilities (CVE-2026-48131 through CVE-2026-48136), such as an SQL injection.
  3. The malicious request is sent to the targeted device via network protocols (e.g., HTTP/HTTPS).
  4. The targeted device processes the request, triggering the vulnerability due to insufficient input validation or other security flaws.
  5. Depending on the specific vulnerability, the attacker achieves one or more of the following:
    • Remote Denial of Service: The device becomes unresponsive or crashes, disrupting normal operations.
    • Data Confidentiality Breach: Sensitive information is exposed to the attacker.
    • Data Integrity Compromise: Data stored on or processed by the device is modified or corrupted.
  6. The attacker may leverage the initial compromise to gain further access to the network.
  7. The attacker may attempt to escalate privileges or move laterally within the network.
  8. The attacker exfiltrates sensitive data, disrupts operations, or causes further damage.

Impact

Exploitation of these vulnerabilities can lead to severe consequences, including service disruption, data theft, and data corruption. Successful attacks could impact businesses of all sizes that rely on Check Point security solutions to protect their networks. The vulnerabilities affect Security Gateways and Spark Firewalls, potentially impacting network security, data confidentiality, and regulatory compliance.

Recommendation

  • Apply the appropriate hotfixes as outlined in Check Point’s security advisories (sk184981, sk184982, sk184983, sk184991, sk184992, sk184993) to patch the identified vulnerabilities in Security Gateways and Spark Firewalls.
  • Deploy the Sigma rules below to detect potential exploitation attempts targeting these vulnerabilities.
  • Monitor network traffic for suspicious activity that may indicate exploitation attempts, focusing on unusual requests to Check Point devices.
  • Review and enforce strict access control policies to limit the impact of potential data breaches.
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