Distribution advisory
This page covers CVE-2026-4948 as tracked by Ubuntu, for the package firewalld. No fixed version has been recorded for this distribution yet.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: None.
Weakness class
UBUNTU-CVE-2026-4948 is classified as CWE-279: Incorrect Execution-Assigned Permissions. While it is executing, the product sets the permissions of an object in a way that violates the intended permissions that have been specified by the user.
Affected software
UBUNTU-CVE-2026-4948 is recorded against 1 package.
Timeline and source
Published on 27 March 2026 and last revised on 20 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.cve.org (Report)
bugzilla.redhat.com (Report)
access.redhat.com (Report)
Other advisories for this package
firewalld has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-279: Incorrect Execution-Assigned Permissions) in other software:
