CVE-2024-9355

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2024-2916 (ENISA EUVD) · GHSA-3h3x-2hwv-hr52 (GitHub Security Advisories) · GO-2024-3167 (OSV.dev)Source: ENISA EUVD

6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 1, 2024

Last Modified

November 10, 2026

Advisory Details (10)

Auto-updated Jun 18, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:7256
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:7118
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2025:2416
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2024:9551
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:8847
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2024:8678
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:8327
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2024:7550
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2024:7502
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

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

Patch Availability(21)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhc-1:0.2.0-6.el8_4.22026-10-29redhat
redhatrhc-1:0.2.2-1.el8_8.32026-10-27redhat
redhatrhc-1:0.2.1-14.el8_6.12026-10-27redhat
redhatosbuild-composer-0:46.3-8.el8_62026-09-21redhat
redhatosbuild-composer-0:75-10.el8_82026-09-17redhat
redhatosbuild-composer-0:101.5-2.el8_102026-09-09redhat
redhatrhtas/fulcio-rhel9:17873054132026-08-25redhat
redhatbutane-0:0.23.0-1.el9_6.12026-08-17redhat
redhatbutane-0:0.17.0-1.el9_2.12026-08-17redhat
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
redhatgolang-0:1.21.13-4.el9_42024-10-02redhat
redhatgo-toolset:rhel8-8100020241001112709.a3795dee2024-10-02redhat
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 rangeFix by version rangeDependents
github.com/golang-fips/openssl—
  • every version through 2.0.3: no fix on record
  • every version on: no fix on record
—

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 10× in last 7d / 50× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 375 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 275 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-11-11 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  3. 2026-11-10 18:37 UTCEchelonGraph re-scored
  4. 2026-11-10 18:37 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  5. 2026-11-10 17:55 UTCEchelonGraph re-scored
  6. 2026-11-10 17:55 UTCVendor advisory
  7. 2026-11-10 17:55 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  8. 2026-11-10 16:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-11-09 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-11-08 16:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-11-07 16:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-11-06 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-11-05 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-11-05 13:28 UTCEchelonGraph re-scored
  15. 2026-11-05 13:28 UTCVendor advisory
  16. 2026-11-05 13:28 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  17. 2026-11-04 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  18. 2026-11-03 16:43 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-11-02 16:41 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-10-29 22:26 UTCEchelonGraph re-scored
  24. 2026-10-29 22:26 UTCVendor advisory
  25. 2026-10-29 22:26 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
Show 75 more
  1. 2026-10-29 22:16 UTCEchelonGraph re-scored
  2. 2026-10-29 22:16 UTCVendor advisory
  3. 2026-10-29 22:16 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  4. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  5. 2026-10-29 06:26 UTCEchelonGraph re-scored
  6. 2026-10-29 06:26 UTCVendor advisory
  7. 2026-10-29 06:26 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  8. 2026-10-29 05:28 UTCEchelonGraph re-scored
  9. 2026-10-29 05:28 UTCVendor advisory
  10. 2026-10-29 05:28 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  11. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-10-27 06:26 UTCEchelonGraph re-scored
  14. 2026-10-27 06:26 UTCVendor advisory
  15. 2026-10-27 06:26 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  16. 2026-10-27 05:52 UTCEchelonGraph re-scored
  17. 2026-10-27 05:52 UTCVendor advisory
  18. 2026-10-27 05:52 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  19. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  20. 2026-10-25 16:51 UTCEchelonGraph re-scored
  21. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  24. 2026-10-22 21:30 UTCEchelonGraph re-scored
  25. 2026-10-22 21:30 UTCVendor advisory
  26. 2026-10-22 21:30 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  27. 2026-10-22 20:27 UTCEchelonGraph re-scored
  28. 2026-10-22 20:27 UTCVendor advisory
  29. 2026-10-22 20:27 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  30. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  31. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  32. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  33. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  34. 2026-10-18 05:54 UTCEchelonGraph re-scored
  35. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  36. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  38. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-10-14 00:25 UTCEchelonGraph re-scored
  40. 2026-10-14 00:25 UTCVendor advisory
  41. 2026-10-14 00:25 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  42. 2026-10-13 23:50 UTCEchelonGraph re-scored
  43. 2026-10-13 23:50 UTCVendor advisory
  44. 2026-10-13 23:50 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  45. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  46. 2026-10-12 17:29 UTCEchelonGraph re-scored
  47. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  48. 2026-10-11 20:59 UTCEchelonGraph re-scored
  49. 2026-10-11 19:09 UTCEchelonGraph re-scored
  50. 2026-10-11 15:50 UTCEchelonGraph re-scored
  51. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  52. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  53. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  54. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  55. 2026-10-08 15:24 UTCEchelonGraph re-scored
  56. 2026-10-08 15:24 UTCVendor advisory
  57. 2026-10-08 15:24 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  58. 2026-10-08 15:12 UTCEchelonGraph re-scored
  59. 2026-10-08 15:12 UTCVendor advisory
  60. 2026-10-08 15:12 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  61. 2026-10-08 12:26 UTCEchelonGraph re-scored
  62. 2026-10-08 12:26 UTCVendor advisory
  63. 2026-10-08 12:26 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  64. 2026-10-08 12:07 UTCEchelonGraph re-scored
  65. 2026-10-08 12:07 UTCVendor advisory
  66. 2026-10-08 12:07 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  67. 2026-10-08 09:18 UTCEchelonGraph re-scored
  68. 2026-10-08 09:18 UTCVendor advisory
  69. 2026-10-08 09:18 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  70. 2026-10-08 08:37 UTCEchelonGraph re-scored
  71. 2026-10-08 08:37 UTCVendor advisory
  72. 2026-10-08 08:37 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5
  73. 2026-10-08 06:23 UTCEchelonGraph re-scored
  74. 2026-10-08 06:23 UTCVendor advisory
  75. 2026-10-08 06:23 UTCGHSA enrichmentGHSA-3h3x-2hwv-hr52 · GitHub severity HIGH · GitHub CVSS 6.5

Frequently asked(5)

What is CVE-2024-9355?
CVE-2024-9355 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2024-9355 was made public on September 30, 2024: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on October 1, 2024. EchelonGraph's copy of the record carries a last-modified date of November 10, 2026; the record at its source may have been updated since.
Is CVE-2024-9355 actively exploited?
CVE-2024-9355 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-9355?
CVE-2024-9355 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2024-9355?
A fix for CVE-2024-9355 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-9355 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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