CVE-2025-3831: checkpoint Check Point Harmony SASE · Exposure of Sensitive Information to an Unauthorized Actor.
Affects checkpoint Check Point Harmony SASESource CVE Database V5
Not known to be exploited · CVSS 8.1 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
AI-suggested
Until an official patch is released, European organizations should implement the following specific mitigations: 1) Restrict access to troubleshooting log upload mechanisms by enforcing strict network segmentation and access controls, limiting exposure to trusted administrative networks only. 2) Monitor and audit all log upload activities for unusual patterns or unauthorized access attempts using SIEM tools. 3) Employ encryption and secure transmission protocols (e.g., TLS 1.3) for any log data in transit to reduce interception risks. 4) Temporarily disable or limit the use of automated log uploads if feasible, substituting with manual, controlled procedures. 5) Engage with Check Point support to obtain guidance on interim configurations or workarounds. 6) Prepare incident response plans specifically addressing potential data exposure scenarios related to this vulnerability. 7) Educate IT and security teams about the vulnerability to ensure rapid detection and response to suspicious activities.
Description
Log files uploaded during troubleshooting by the Harmony SASE agent may have been accessible to unauthorized parties.