CVE-2023-54356

LOWPre-NVD 3.73.7—
EchelonGraph scoreHIGH confidence

Score 3.7 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-01. a secondary CVSS source baseline 3.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
3.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.7Exploit: None knownExposed: 0

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

Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA and TLS_RSA_WITH_3DES_EDE_CBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large volumes of traffic, could allow an attacker to recover small amounts of plaintext. The issue is fixed in Kyverno 1.9.5 and 1.10.0.

CVSS v3
3.7
EG Score
3.7(high)
EG Risk
17(Track)
EG Risk 17/100SSVC: 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
Severity37% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 10, 2026

References (2)

Vendor Advisories for CVE-2023-54356(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/kyverno/kyverno—1.9.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 31× 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. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-17 05:05 UTCEG score recompute
  3. 2026-09-17 05:05 UTCGHSA enrichment
  4. 2026-09-16 14:06 UTCEPSS rescore
  5. 2026-09-16 05:11 UTCEPSS rescore
  6. 2026-09-16 05:11 UTCEPSS rescore
  7. 2026-09-15 03:08 UTCEPSS rescore
  8. 2026-09-13 22:33 UTCEG score recompute
  9. 2026-09-13 22:33 UTCGHSA enrichment
  10. 2026-09-13 16:45 UTCEPSS rescore
  11. 2026-09-11 14:51 UTCEPSS rescore
  12. 2026-09-11 09:34 UTCEPSS rescore
  13. 2026-09-10 16:02 UTCGHSA enrichment
  14. 2026-09-10 15:34 UTCEG score recompute
  15. 2026-09-10 15:34 UTCGHSA enrichment
  16. 2026-09-08 21:58 UTCEPSS rescore
  17. 2026-09-07 15:59 UTCEPSS rescore
  18. 2026-09-07 09:01 UTCEG score recompute
  19. 2026-09-07 09:01 UTCGHSA enrichment
  20. 2026-09-06 13:46 UTCEPSS rescore
  21. 2026-09-05 15:26 UTCEPSS rescore
  22. 2026-09-04 13:58 UTCEPSS rescore
  23. 2026-09-04 05:04 UTCEPSS rescore
  24. 2026-09-04 02:28 UTCEG score recompute
  25. 2026-09-04 02:28 UTCGHSA enrichment
Show 6 more
  1. 2026-09-04 02:00 UTCEG score recompute
  2. 2026-09-04 02:00 UTCGHSA enrichment
  3. 2026-09-02 14:10 UTCEPSS rescore
  4. 2026-09-01 12:27 UTCEG score recompute
  5. 2026-09-01 11:43 UTCEG score recompute
  6. 2026-09-01 11:41 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2023-54356?
CVE-2023-54356 is a low vulnerability published on September 1, 2026. Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLSECDHERSAWITH3DESEDECBCSHA and TLSRSAWITH3DESEDECBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large…
When was CVE-2023-54356 disclosed?
CVE-2023-54356 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-54356 actively exploited?
CVE-2023-54356 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 95.6% of all scored CVEs.
What is the CVSS score of CVE-2023-54356?
CVE-2023-54356 has a CVSS v3 base score of 3.7 (NVD).
How do I remediate CVE-2023-54356?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54356, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-54356

Explore →

Is Your Infrastructure Affected by CVE-2023-54356?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs