CVE-2024-9355

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

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

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 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
—
EPSS
21.9%
KEV
Not listed

Published

October 1, 2024

Last Modified

June 18, 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(11)

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

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatforeman_ygg_worker-0:0.3.1-1.el9sat2025-05-14redhat
redhatgit-lfs-0:3.6.1-1.el92025-05-13redhat
redhatosbuild-composer-0:132-1.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 11× 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.

Showing the most recent 100 of 113 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
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  3. 2026-07-21 15:24 UTCEPSS rescore
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  1. 2026-07-06 16:26 UTCEPSS rescore
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  9. 2026-06-30 23:21 UTCEPSS rescore
  10. 2026-06-28 14:07 UTCEPSS rescore
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  24. 2026-06-21 01:59 UTCEPSS rescore
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  27. 2026-06-18 17:52 UTCEPSS rescore
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  42. 2026-06-08 14:16 UTCEPSS rescore
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  44. 2026-06-07 15:24 UTCEPSS rescore
  45. 2026-06-06 13:47 UTCEPSS rescore
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  47. 2026-06-05 22:46 UTCEPSS rescore
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  49. 2026-06-05 06:10 UTCEPSS rescore
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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 June 18, 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 21.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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