CVE-2025-65637

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 83% 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
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with "token too long" and the writer pipe is closed, leaving Writer() unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2. The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to function even if an error is logged.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
44.4%
KEV
Not listed

Published

December 4, 2025

Last Modified

June 17, 2026

References (8)

Vendor Advisories for CVE-2025-65637(20)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-insights-rhel9-operator:17787094532026-05-20redhat
redhatopenshift4/ose-kube-proxy-rhel9:17775193692026-05-13redhat
redhatoci-seccomp-bpf-hook-0:1.2.10-1.el9_02026-05-11redhat
redhatskopeo-2:1.8.0-4.1.el9_0.32026-05-11redhat
redhatopenshift-0:4.12.0-202604271501.p2.gedc7ba9.assembly.stream.el82026-05-08redhat
redhatskopeo-2:1.11.4-0.1.el9_2.52026-05-06redhat
redhatopenshift4/ose-hyperkube:17773047522026-05-06redhat
redhatgolang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20260225161428.32d52e7.el9ost2026-04-29redhat
redhatoci-seccomp-bpf-hook-0:1.2.10-1.el9_22026-04-29redhat
redhatcontainer-tools:rhel8-8060020260422144418.ad008a3a2026-04-27redhat
redhatopenshift4/ose-cloud-event-proxy-rhel8:17756139762026-04-16redhat
redhatopenshift4/ovirt-csi-driver-rhel8-operator:17756140682026-04-16redhat
redhatopenshift-0:4.13.0-202603240119.p2.g7aa9360.assembly.stream.el82026-04-16redhat
redhatrunc-4:1.2.9-1.el9_02026-04-15redhat
redhatopenshift4/ose-thanos-rhel8:17742736132026-04-09redhat
redhatopenshift4/ztp-site-generate-rhel8:17755319252026-04-07redhat
redhatopenshift4/ose-cluster-kube-controller-manager-rhel9-operator:17743204802026-04-01redhat
redhatcontainer-tools:rhel8-8080020260325222945.63b345852026-03-30redhat
redhatopenshift4/ose-cloud-event-proxy-rhel8:17733395452026-03-26redhat
redhatopenshift4/ose-powervs-block-csi-driver-operator-rhel8:17733380142026-03-26redhat
redhatopenshift4/ose-docker-registry-rhel9:17727321962026-03-25redhat
redhatmicroshift-0:4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el92026-03-19redhat
redhatopenshift4/ose-ptp-rhel9:17722015072026-03-19redhat
redhatopenshift4/ptp-must-gather-rhel8:17725983272026-03-19redhat
redhatopenshift4/ose-openshift-apiserver-rhel9:17721487092026-03-19redhat
redhatopenshift-0:4.15.0-202602130120.p2.g5cb2ef4.assembly.stream.el82026-03-19redhat
redhatopenshift4/ovirt-csi-driver-rhel9-operator:17722024242026-03-19redhat
redhatopenshift4/ose-vsphere-csi-driver-rhel9:17721587372026-03-19redhat
redhatopenshift4/ose-docker-registry-rhel9:17721675832026-03-18redhat
redhatcontainer-tools:rhel8-8080020260226135022.63b345852026-03-17redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/sirupsen/logrus—1.9.3—

Weakness Classification(1)

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

Additional Vendor Advisories

(16)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 44× 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.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCmjuanxd/logrus-dos-poc
    First seen Nov 7, 2025

    CVE-2025-65637: Logrus Denial of Service Vulnerability

    Open source ↗

Frequently asked(5)

What is CVE-2025-65637?
CVE-2025-65637 is a high vulnerability published on December 4, 2025. A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with "token too long" and the writer pipe is closed, leaving…
When was CVE-2025-65637 disclosed?
CVE-2025-65637 was first published in the National Vulnerability Database on December 4, 2025, 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-2025-65637 actively exploited?
CVE-2025-65637 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-65637?
CVE-2025-65637 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-65637?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-65637, 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

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