CVE-2023-39916

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 0.6% (48th 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, nvd
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 as well as 0.14.0 up to and including 0.14.2 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
42
EG Risk 42/100CISA 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
Severity93% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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

Exploitation none (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

September 13, 2023

Last Modified

October 3, 2025

Advisory Details (1)

Auto-updated Sep 15, 2026
Patch available.
generic
https://nlnetlabs.nl/downloads/routinator/CVE-2023-39916.txt

Affected Packages

(1 across 1 ecosystem)
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
routinator—
  • 0.9.0 up to 0.12.2: fixed in 0.12.2
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× 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 199 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2023-39916?
CVE-2023-39916 is a critical vulnerability published on September 13, 2023. NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 as well as 0.14.0 up to and including 0.14.2 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The…
When was CVE-2023-39916 disclosed?
CVE-2023-39916 was first published on September 13, 2023, with the most recent update on October 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-39916 actively exploited?
CVE-2023-39916 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-39916?
CVE-2023-39916 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2023-39916?
A fix for CVE-2023-39916 is available: update to the fixed version the vendor names in its advisory.

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