CVE-2026-48700

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 92% 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, nvd
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.3Exploit: NoneExposed: 0

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

An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution or circumvent network namespace restrictions. NOTE: those outcomes are potentially unwanted by most users; however, the behavior of the product does comply with the applicable specification, and a simplistic solution (ensuring that the URI does not name a regular file) may have adverse consequences for I/O.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
—
EPSS
7.9%
KEV
Not listed

Published

May 22, 2026

Last Modified

May 24, 2026

Advisory Details (4)

Auto-updated May 28, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

oss-security - Re: PCManFM-Qt allows arbitrary files to be opened via the org.freedesktop.FileManager1.ShowFolders method

http://www.openwall.com/lists/oss-security/2026/05/24/6
generic🟡 PoC Available

oss-security - PCManFM-Qt allows arbitrary files to be opened via the org.freedesktop.FileManager1.ShowFolders method

https://www.openwall.com/lists/oss-security/2026/05/20/2
generic

oss-security - On the issue of MIME handlers that execute arbitrary code (e.g. Wine)

https://www.openwall.com/lists/oss-security/2026/05/19/1
generic

Releases · lxqt/pcmanfm-qt · GitHub

https://github.com/lxqt/pcmanfm-qt/releases

Vendor Advisories for CVE-2026-48700(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 49× 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 203 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-48700?
CVE-2026-48700 is a critical vulnerability published on May 22, 2026. An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program (based on the file type) without user confirmation. This could be…
When was CVE-2026-48700 disclosed?
CVE-2026-48700 was first published in the National Vulnerability Database on May 22, 2026, with the most recent update on May 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48700 actively exploited?
CVE-2026-48700 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48700?
CVE-2026-48700 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-48700?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48700, 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

Explore the affected products and dependency analysis for CVE-2026-48700

Explore →

Is Your Infrastructure Affected by CVE-2026-48700?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs