CVE-2021-32563

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.0%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
50
EG Risk 50/100CISA 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
Severity98% × 45%
Exploitation3% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
3.0%
EPSS %ILE
87th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). 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

May 11, 2021

Last Modified

November 21, 2024

Advisory Details (8)

Auto-updated Oct 3, 2026
Patch available.
generic

oss-security - Code execution through MIME-type association of Mono interpreter and security expectations of MIME type associations

http://www.openwall.com/lists/oss-security/2023/01/05/1
generic

oss-security - Re: Code execution through Thunar

http://www.openwall.com/lists/oss-security/2021/05/11/3
generic

oss-security - Code execution through Thunar

https://www.openwall.com/lists/oss-security/2021/05/09/2
generic

Tags · Xfce / thunar · GitLab

https://gitlab.xfce.org/xfce/thunar/-/tags
generic

Dont execute files, passed via command line due to security risks (9165a61f) · Commits · Xfce / thunar · GitLab

https://gitlab.xfce.org/xfce/thunar/-/commit/9165a61f95e43cc0b5abf9b98eee2818a0191e0b
generic

Regression: Activating Desktop Icon does not Use Default Application (3b54d9d7) · Commits · Xfce / thunar · GitLab

https://gitlab.xfce.org/xfce/thunar/-/commit/3b54d9d7dbd7fd16235e2141c43a7f18718f5664
generic

Dont execute files, passed via command line due to security risks (1b85b96e) · Commits · Xfce / thunar · GitLab

https://gitlab.xfce.org/xfce/thunar/-/commit/1b85b96ebf7cb9bf6a3ddf1acee7643643fdf92d
generic

oss-security - Re: Code execution through MIME-type association of Mono interpreter and security expectations of MIME type associations

http://www.openwall.com/lists/oss-security/2023/01/05/2

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
thunar—
  • every version up to 4.16.8-1: fixed in 4.16.8-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
thunar—
  • every version up to 4.16.8-1: fixed in 4.16.8-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
thunar—
  • every version up to 4.16.8-1: fixed in 4.16.8-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
thunar—
  • every version up to 4.16.8-1: fixed in 4.16.8-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 33× 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 185 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Same product

1 shown

Debian:11:thunar

Frequently asked(5)

What is CVE-2021-32563?
CVE-2021-32563 is a critical vulnerability published on May 11, 2021. An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.
When was CVE-2021-32563 disclosed?
CVE-2021-32563 was first published on May 11, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-32563 actively exploited?
CVE-2021-32563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.0% probability of exploitation in the next 30 days (87th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2021-32563?
CVE-2021-32563 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-32563?
A fix for CVE-2021-32563 is available: update to the fixed version the vendor names in its advisory.

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