CVE-2026-53449

MEDIUMPre-NVD 6.06.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (9th percentile of EPSS-scored CVEs). 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
Elevated
6.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.

CVSS v3
6.0
EG Score
6.0MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA 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
Severity60% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

July 10, 2026

Last Modified

July 16, 2026

Advisory Details (3)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

4.13.0

Patch available: coturn/coturn 4.13.0

https://github.com/coturn/coturn/releases/tag/4.13.0
github_commit Patch Available

commit e72930f571be (coturn/coturn)

Patch available: coturn/coturn 4.13.0 (contains commit e72930f571be)

https://github.com/coturn/coturn/commit/e72930f571beba3bc7a9f97661af2614aae92a55
githubMentions a patch (unverified)🟡 PoC Available

Arbitrary File Write via CLI psd Command · Advisory · coturn/coturn · GitHub

https://github.com/coturn/coturn/security/advisories/GHSA-jj76-vwjw-w34r

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
coturn4.12.0-1 ... 4.6.1-2 (7 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
coturn4.12.0-1, 4.14.0-1, 4.15.0-1, 4.6.1-1, 4.6.1-2
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
coturn4.12.0-1, 4.14.0-1, 4.15.0-1, 4.6.1-2
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
coturn4.12.0-1, 4.6.1-2
  • every version up to 4.14.0-1: fixed in 4.14.0-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× 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 120 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-53449?
CVE-2026-53449 is a medium vulnerability published on July 10, 2026. Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by…
When was CVE-2026-53449 disclosed?
CVE-2026-53449 was first published on July 10, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53449 actively exploited?
CVE-2026-53449 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53449?
CVE-2026-53449 has a CVSS base score of 6.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53449?
A fix for CVE-2026-53449 is available: update to the fixed version the vendor names in its advisory.

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