HOMEVULNERABILITIESCVE-2026-4948
MEDIUM

CVE-2026-4948

CWE-279Published: March 27, 2026· Updated: Mar 30, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:5.0th

Official Description

A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations.

NVD Source

Technical Analysis

CVE-2026-4948 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (2)

→
https://access.redhat.com/security/cve/CVE-2026-4948
→
https://bugzilla.redhat.com/show_bug.cgi?id=2452086

Quick Facts

CVE IDCVE-2026-4948
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-279
CISA KEVNo
EPSS (30d)0.02%
PublishedMar 27, 2026

Related CVEs (CWE-279)

CVE-2026-20062
7.2
CVE-2025-12801
6.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-4948 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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