CVE-2025-7519

MEDIUMPre-NVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

Score 6.7 from GitHub Security Advisory published 2025-07-14. a secondary CVSS source baseline 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.7Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.

CVSS v3
6.7
EG Score
6.7(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 14, 2025

Last Modified

September 1, 2026

Advisory Details (4)

Auto-updated Jun 25, 2026
Patch available. Sources: github_pr, redhat, github_commit.
github_pr Patch Available

Nested .policy files cause xml parsing overflow leading to crash

Patch available: polkit-org/polkit 127 (PR #570 merged 2025-07-05)

https://github.com/polkit-org/polkit/pull/570
github_commit Patch Available

commit 107d3801361b (polkit-org/polkit)

Patch available: polkit-org/polkit 127 (contains commit 107d3801361b)

https://github.com/polkit-org/polkit/commit/107d3801361b9f9084f78710178e683391f1d245
redhat

2379675 – (CVE-2025-7519) CVE-2025-7519 polkit: XML policy file with a large number of nested elements may lead to out-of-bounds write

https://bugzilla.redhat.com/show_bug.cgi?id=2379675
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-7519

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupolkitd (126-2ubuntu0.1) @ questing2026-09-01ubuntu

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 rangeFixed inDependents
policykit-10.105-31 ... 127-3 (64 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
policykit-1122-3 ... 127-3 (15 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
policykit-1126-2, 127-1, 127-2, 127-3——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
policykit-1126-2127-1—

Weakness Classification(1)

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

All Vendor Advisories

(2)

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 7× in last 7d / 37× 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 167 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2025-7519?
CVE-2025-7519 is a medium vulnerability published on July 14, 2025. A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is…
When was CVE-2025-7519 disclosed?
CVE-2025-7519 was first published in the National Vulnerability Database on July 14, 2025, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-7519 actively exploited?
CVE-2025-7519 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 90.9% of all scored CVEs.
What is the CVSS score of CVE-2025-7519?
CVE-2025-7519 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2025-7519?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-7519, 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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