CVE-2023-47124

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 48% 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
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.9Exploit: NoneExposed: 0

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

Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the HTTPChallenge to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a slowloris attack. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the HTTPChallenge with the TLSChallenge or the DNSChallenge.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
—
EPSS
52.5%
KEV
Not listed

Published

December 4, 2023

Last Modified

June 17, 2026

References (14)

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/traefik/traefik———
github.com/traefik/traefik/v2—2.10.6—
github.com/traefik/traefik/v3—3.0.0-beta5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 48× 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 102 total refreshes for this CVE.

  1. 2026-07-22 23:14 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
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  11. 2026-07-16 17:01 UTCEPSS rescore
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  14. 2026-07-15 02:19 UTCOSV refresh
  15. 2026-07-15 01:59 UTCEPSS rescore
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  1. 2026-07-07 13:44 UTCEPSS rescore
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  17. 2026-06-27 03:07 UTCOSV refresh
  18. 2026-06-25 13:48 UTCEPSS rescore
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  30. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-12 23:11 UTCEPSS rescore
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  42. 2026-06-11 13:59 UTCEPSS rescore
  43. 2026-06-10 22:17 UTCEPSS rescore
  44. 2026-06-10 13:21 UTCEPSS rescore
  45. 2026-06-09 13:47 UTCOSV refresh
  46. 2026-06-08 14:16 UTCEPSS rescore
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  48. 2026-06-07 15:24 UTCEPSS rescore
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  50. 2026-06-06 13:46 UTCEPSS rescore
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  74. 2026-05-26 07:18 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-47124?
CVE-2023-47124 is a medium vulnerability published on December 4, 2023. Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the HTTPChallenge to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a slowloris attack. This…
When was CVE-2023-47124 disclosed?
CVE-2023-47124 was first published in the National Vulnerability Database on December 4, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-47124 actively exploited?
CVE-2023-47124 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-47124?
CVE-2023-47124 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2023-47124?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-47124, 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.

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