CVE-2024-9355

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2024-10-01. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A vulnerability was found in Golang FIPS OpenSSL. This flaw allows a malicious user to randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode. It may also be possible to force a false positive match between non-equal hashes when comparing a trusted computed hmac sum to an untrusted input sum if an attacker can send a zeroed buffer in place of a pre-computed sum.  It is also possible to force a derived key to be all zeros instead of an unpredictable value.  This may have follow-on implications for the Go TLS stack.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

October 1, 2024

Last Modified

September 17, 2026

Advisory Details (10)

Auto-updated Jun 18, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:7256
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:7118
redhat Patch Available
https://access.redhat.com/errata/RHSA-2025:2416
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2024:9551
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:8847
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2024:8678
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:8327
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2024:7550
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:7502
redhat Patch Available

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

https://access.redhat.com/errata/RHSA-2024:10133

Vendor Advisories for CVE-2024-9355(17)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatosbuild-composer-0:101.5-2.el8_102026-09-09redhat
redhatrhtas/fulcio-rhel9:17873054132026-08-25redhat
redhatbutane-0:0.17.0-1.el9_2.12026-08-17redhat
redhatbutane-0:0.23.0-1.el9_6.12026-08-17redhat
redhatforeman_ygg_worker-0:0.3.1-1.el9sat2025-05-14redhat
redhatosbuild-composer-0:132-1.el92025-05-13redhat
redhatgit-lfs-0:3.6.1-1.el92025-05-13redhat
redhatgolang-github-danielqsj-kafka_exporter2025-03-05redhat
redhatrhc-worker-script-0:0.10-2.el7_92024-11-21redhat
redhatgrafana-pcp-0:5.1.1-4.el9_42024-11-13redhat
redhatgrafana-pcp-0:5.1.1-9.el8_102024-11-05redhat
redhatgrafana-0:9.2.10-19.el9_42024-10-30redhat
redhatgrafana-0:9.2.10-20.el8_102024-10-22redhat
redhatgo-toolset:rhel8-8100020241001112709.a3795dee2024-10-02redhat
redhatgolang-0:1.21.13-4.el9_42024-10-02redhat
gogithub.com/golang-fips/openssl—ghsa

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/golang-fips/openssl———

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 14× in last 7d / 52× 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 249 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2024-9355?
CVE-2024-9355 is a medium vulnerability published on October 1, 2024. A vulnerability was found in Golang FIPS OpenSSL. This flaw allows a malicious user to randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode. It may also be possible to force a false positive match between non-equal hashes when comparing a trusted…
When was CVE-2024-9355 disclosed?
CVE-2024-9355 was first published in the National Vulnerability Database on October 1, 2024, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-9355 actively exploited?
CVE-2024-9355 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 77.3% of all scored CVEs.
What is the CVSS score of CVE-2024-9355?
CVE-2024-9355 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2024-9355?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-9355, 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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