CVE-2026-4948

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-03-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 27, 2026

Last Modified

October 6, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
Patch available. Sources: redhat.
redhat

2452086 – (CVE-2026-4948) CVE-2026-4948 firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization

https://bugzilla.redhat.com/show_bug.cgi?id=2452086
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-4948

Vendor Advisories for CVE-2026-4948(6)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatfirewalld-0:2.3.1-1.el10_0.12026-09-16redhat
redhatfirewalld-0:1.3.4-20.el9_82026-09-15redhat
redhatfirewalld-0:2.4.2-1.el10_22026-06-23redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
firewalld0.9.3-2
  • every version up to 0.9.3-2+deb11u1: fixed in 0.9.3-2+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
firewalld1.3.0-1, 1.3.1-1, 1.3.2-1, 1.3.3-1~deb12u1
  • every version up to 1.3.3-1~deb12u2: fixed in 1.3.3-1~deb12u2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
firewalld2.3.1-1
  • every version up to 2.3.1-1+deb13u1: fixed in 2.3.1-1+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
firewalld2.3.1-1, 2.3.1-2, 2.3.1-3, 2.4.0-1
  • every version up to 2.4.0-2: fixed in 2.4.0-2
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 36× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 221 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 18:33 UTCVendor advisory
  5. 2026-10-06 18:33 UTCGHSA enrichment
  6. 2026-10-06 17:47 UTCEG score recompute
  7. 2026-10-06 17:47 UTCVendor advisory
  8. 2026-10-06 17:47 UTCGHSA enrichment
  9. 2026-10-06 15:18 UTCEPSS rescore
  10. 2026-10-05 17:43 UTCEPSS rescore
  11. 2026-10-04 23:22 UTCEPSS rescore
  12. 2026-10-03 14:26 UTCEPSS rescore
  13. 2026-10-01 19:50 UTCEPSS rescore
  14. 2026-09-30 15:03 UTCEPSS rescore
  15. 2026-09-28 13:51 UTCEPSS rescore
  16. 2026-09-27 13:48 UTCEPSS rescore
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-26 00:27 UTCEPSS rescore
  19. 2026-09-23 17:53 UTCEPSS rescore
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-18 19:28 UTCEPSS rescore
  22. 2026-09-16 14:08 UTCEPSS rescore
  23. 2026-09-16 13:49 UTCVendor advisory
  24. 2026-09-16 13:48 UTCGHSA enrichment
  25. 2026-09-16 12:21 UTCEG score recompute
Show 75 more
  1. 2026-09-16 12:21 UTCVendor advisory
  2. 2026-09-16 12:21 UTCGHSA enrichment
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-16 00:35 UTCVendor advisory
  5. 2026-09-16 00:35 UTCGHSA enrichment
  6. 2026-09-15 23:53 UTCEG score recompute
  7. 2026-09-15 23:53 UTCVendor advisory
  8. 2026-09-15 23:53 UTCGHSA enrichment
  9. 2026-09-13 16:47 UTCEPSS rescore
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-10 09:35 UTCEPSS rescore
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-02 14:12 UTCEPSS rescore
  17. 2026-09-01 13:54 UTCEPSS rescore
  18. 2026-09-01 13:51 UTCVendor advisory
  19. 2026-09-01 13:51 UTCGHSA enrichment
  20. 2026-09-01 12:24 UTCEG score recompute
  21. 2026-09-01 12:24 UTCVendor advisory
  22. 2026-09-01 12:23 UTCGHSA enrichment
  23. 2026-09-01 04:40 UTCEPSS rescore
  24. 2026-08-31 16:43 UTCEG score recompute
  25. 2026-08-31 16:43 UTCVendor advisory
  26. 2026-08-31 16:43 UTCGHSA enrichment
  27. 2026-08-30 19:17 UTCEPSS rescore
  28. 2026-08-30 01:22 UTCEPSS rescore
  29. 2026-08-28 21:41 UTCEPSS rescore
  30. 2026-08-27 14:25 UTCEPSS rescore
  31. 2026-08-25 13:49 UTCEPSS rescore
  32. 2026-08-21 23:49 UTCEPSS rescore
  33. 2026-08-21 13:23 UTCVendor advisory
  34. 2026-08-21 13:23 UTCGHSA enrichment
  35. 2026-08-21 12:50 UTCEG score recompute
  36. 2026-08-21 12:50 UTCVendor advisory
  37. 2026-08-21 12:50 UTCGHSA enrichment
  38. 2026-08-20 22:55 UTCEPSS rescore
  39. 2026-08-19 17:04 UTCEPSS rescore
  40. 2026-08-18 13:48 UTCEPSS rescore
  41. 2026-08-17 13:47 UTCEPSS rescore
  42. 2026-08-16 14:56 UTCEPSS rescore
  43. 2026-08-16 10:02 UTCEG score recompute
  44. 2026-08-16 10:02 UTCVendor advisory
  45. 2026-08-16 10:02 UTCGHSA enrichment
  46. 2026-08-16 02:14 UTCEPSS rescore
  47. 2026-08-15 01:30 UTCEPSS rescore
  48. 2026-08-14 06:21 UTCEG score recompute
  49. 2026-08-14 06:21 UTCVendor advisory
  50. 2026-08-14 06:21 UTCGHSA enrichment
  51. 2026-08-13 22:00 UTCEPSS rescore
  52. 2026-08-12 20:38 UTCEG score recompute
  53. 2026-08-12 20:38 UTCVendor advisory
  54. 2026-08-12 20:38 UTCGHSA enrichment
  55. 2026-08-12 13:51 UTCEPSS rescore
  56. 2026-08-11 04:50 UTCEG score recompute
  57. 2026-08-11 04:50 UTCVendor advisory
  58. 2026-08-11 04:50 UTCGHSA enrichment
  59. 2026-08-11 00:00 UTCEPSS rescore
  60. 2026-08-10 05:23 UTCEG score recompute
  61. 2026-08-10 05:23 UTCVendor advisory
  62. 2026-08-10 05:23 UTCGHSA enrichment
  63. 2026-08-09 13:46 UTCEPSS rescore
  64. 2026-08-09 05:53 UTCEG score recompute
  65. 2026-08-09 05:53 UTCVendor advisory
  66. 2026-08-09 05:53 UTCGHSA enrichment
  67. 2026-08-08 16:37 UTCEPSS rescore
  68. 2026-08-07 16:21 UTCEG score recompute
  69. 2026-08-07 16:21 UTCVendor advisory
  70. 2026-08-07 16:21 UTCGHSA enrichment
  71. 2026-08-06 13:47 UTCEPSS rescore
  72. 2026-08-06 00:48 UTCEG score recompute
  73. 2026-08-06 00:48 UTCVendor advisory
  74. 2026-08-06 00:48 UTCGHSA enrichment
  75. 2026-08-05 19:17 UTCEPSS rescore

Related CVEs(same product + same CWE)

Same product

1 shown

Debian:11:firewalld

Frequently asked(5)

What is CVE-2026-4948?
CVE-2026-4948 is a medium vulnerability published on March 27, 2026. 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,…
When was CVE-2026-4948 disclosed?
CVE-2026-4948 was first published on March 27, 2026, with the most recent update on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4948 actively exploited?
CVE-2026-4948 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-4948?
CVE-2026-4948 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-4948?
A fix for CVE-2026-4948 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-4948 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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