CVE-2025-57849: Red Hat Fuse 7 · Incorrect Default Permissions
Affects Red Hat Fuse 7Source CVE Database V5
Not known to be exploited · CVSS 6.4 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Fuse 7 | Affected– | Fixed in– |
AI-suggested
To mitigate CVE-2025-57849, organizations should take the following specific actions: 1) Rebuild affected Red Hat Fuse 7 container images ensuring that the /etc/passwd file is created with secure, non-group-writable permissions during the build process. 2) Audit and restrict membership of the root group within containers to the minimum necessary users, ideally avoiding non-root users in this group. 3) Implement container runtime security policies that prevent unauthorized modification of critical system files such as /etc/passwd, using tools like SELinux, AppArmor, or seccomp profiles. 4) Employ container image scanning and continuous security validation to detect insecure file permissions and privilege escalation risks before deployment. 5) Use least privilege principles for container users and avoid running containers with elevated privileges unless absolutely required. 6) Monitor container logs and behavior for suspicious activities indicative of privilege escalation attempts. 7) Stay updated with Red Hat security advisories and apply patches or updated images as they become available. These targeted measures go beyond generic advice by focusing on build-time image hygiene, group membership controls, and runtime enforcement.
Description
A container privilege escalation flaw was found in certain Fuse images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.