CVE-2025-53827

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 74% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCloud Classic. In versions prior to 10.15.3, the Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function. Attackers with administrative privileges may leverage functionality to execute arbitrary code. This issue has been fixed in version 10.15.3.

CVSS v3
9.1
EG Score
9.1(medium)
EPSS
26.3%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 8, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
Patch available. Sources: github.
github Patch Available

[OC10] Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function · Advisory · owncloud/security-advisories · GitHub

https://github.com/owncloud/security-advisories/security/advisories/GHSA-hvcx-ph66-mmvw

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 38× in last 7d / 38× 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.

  1. 2026-07-12 01:01 UTCEG score recompute
  2. 2026-07-11 20:51 UTCEG score recompute
  3. 2026-07-11 16:41 UTCEG score recompute
  4. 2026-07-11 12:31 UTCEG score recompute
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 08:21 UTCEG score recompute
  8. 2026-07-11 04:11 UTCEG score recompute
  9. 2026-07-11 00:00 UTCEG score recompute
  10. 2026-07-10 19:50 UTCEG score recompute
  11. 2026-07-10 15:40 UTCEG score recompute
  12. 2026-07-10 11:28 UTCEG score recompute
  13. 2026-07-10 07:18 UTCEG score recompute
  14. 2026-07-10 03:08 UTCEG score recompute
  15. 2026-07-09 22:57 UTCEG score recompute
  16. 2026-07-09 19:09 UTCEPSS rescore
  17. 2026-07-09 18:47 UTCEG score recompute
  18. 2026-07-09 14:34 UTCEG score recompute
  19. 2026-07-09 10:24 UTCEG score recompute
  20. 2026-07-09 06:13 UTCEG score recompute
  21. 2026-07-09 02:04 UTCEG score recompute
  22. 2026-07-08 21:52 UTCEG score recompute
  23. 2026-07-08 17:42 UTCEG score recompute
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 13:33 UTCEG score recompute
Show 13 more
  1. 2026-07-08 09:21 UTCEG score recompute
  2. 2026-07-08 05:11 UTCEG score recompute
  3. 2026-07-08 00:59 UTCEG score recompute
  4. 2026-07-07 20:49 UTCEG score recompute
  5. 2026-07-07 16:39 UTCEG score recompute
  6. 2026-07-07 13:45 UTCEPSS rescore
  7. 2026-07-07 12:29 UTCEG score recompute
  8. 2026-07-07 08:19 UTCEG score recompute
  9. 2026-07-07 04:08 UTCEG score recompute
  10. 2026-07-06 23:57 UTCEG score recompute
  11. 2026-07-06 19:47 UTCEG score recompute
  12. 2026-07-06 15:36 UTCEG score recompute
  13. 2026-07-06 15:36 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2025-53827?
CVE-2025-53827 is a critical vulnerability published on July 6, 2026. ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCloud Classic. In versions prior to 10.15.3, the Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function. Attackers with administrative privileges may leverage…
When was CVE-2025-53827 disclosed?
CVE-2025-53827 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-53827 actively exploited?
CVE-2025-53827 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-53827?
CVE-2025-53827 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2025-53827?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-53827, 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.

Dependency Blast Radius

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