CVE-2025-53391

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2025-06-29. NVD baseline CVSS 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

The Debian zuluPolkit/CMakeLists.txt file for zuluCrypt through the zulucrypt_6.2.0-1 package has insecure PolicyKit allow_any/allow_inactive/allow_active settings that allow a local user to escalate their privileges to root.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: Track*

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
Severity93% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 28, 2025

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Patch available.
generic Patch Available

#1108288 - CVE-2025-53391: Local privilege escalation via zuluPolkit, caused by Debian patch - Debian Bug report logs

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1108288
generic

debian/patches/fix_zulupolkit_policy.patch · 9d661c9f384c4d889d3387944e14ac70cfb9684b · Debian / zulucrypt · GitLab

https://salsa.debian.org/debian/zulucrypt/-/blob/9d661c9f384c4d889d3387944e14ac70cfb9684b/debian/patches/fix_zulupolkit_policy.patch
generic Patch Available

#1108288 - CVE-2025-53391: Local privilege escalation via zuluPolkit, caused by Debian patch - Debian Bug report logs

https://bugs.debian.org/1108288

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuzulusafe-cli (6.2.0-1ubuntu3+esm1) @ noble2026-05-21ubuntu

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

(1 across 1 ecosystem)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
zulucrypt5.7.1-2, 6.2.0-1——

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 30× 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 180 total refreshes for this CVE.

  1. 2026-09-21 21:06 UTCEPSS rescore
  2. 2026-09-20 20:15 UTCEPSS rescore
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  8. 2026-09-16 22:36 UTCOSV refresh
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  24. 2026-08-28 22:43 UTCOSV refresh
  25. 2026-08-28 21:40 UTCEPSS rescore
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  1. 2026-08-27 14:24 UTCEPSS rescore
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  18. 2026-08-12 10:10 UTCOSV refresh
  19. 2026-08-11 13:42 UTCEPSS rescore
  20. 2026-08-10 23:59 UTCEPSS rescore
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-08 16:36 UTCEPSS rescore
  23. 2026-08-06 13:46 UTCEPSS rescore
  24. 2026-08-05 19:16 UTCEPSS rescore
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  27. 2026-08-04 10:37 UTCEPSS rescore
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  37. 2026-07-23 02:58 UTCEG score recompute
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  44. 2026-07-18 10:04 UTCEPSS rescore
  45. 2026-07-16 17:02 UTCEPSS rescore
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  48. 2026-07-15 01:59 UTCEPSS rescore
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  50. 2026-07-13 22:29 UTCEPSS rescore
  51. 2026-07-13 06:12 UTCEPSS rescore
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  54. 2026-07-11 08:27 UTCEPSS rescore
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  56. 2026-07-10 10:22 UTCOSV refresh
  57. 2026-07-09 19:09 UTCEPSS rescore
  58. 2026-07-08 15:15 UTCEPSS rescore
  59. 2026-07-07 13:45 UTCEPSS rescore
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  68. 2026-06-30 23:22 UTCEPSS rescore
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  73. 2026-06-28 04:55 UTCEPSS rescore
  74. 2026-06-27 03:08 UTCEPSS rescore
  75. 2026-06-27 03:08 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-53391?
CVE-2025-53391 is a critical vulnerability published on June 28, 2025. The Debian zuluPolkit/CMakeLists.txt file for zuluCrypt through the zulucrypt6.2.0-1 package has insecure PolicyKit allowany/allowinactive/allowactive settings that allow a local user to escalate their privileges to root.
When was CVE-2025-53391 disclosed?
CVE-2025-53391 was first published in the National Vulnerability Database on June 28, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-53391 actively exploited?
CVE-2025-53391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.3% of all scored CVEs.
What is the CVSS score of CVE-2025-53391?
CVE-2025-53391 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2025-53391?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-53391, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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