CVE-2023-45146

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 1.0% (62nd percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 10.0Exploit: Elevated riskExposed services: Not assessed

A fixed version is listed under Patch Availability — apply it.

XXL-RPC is a high performance, distributed RPC framework. With it, a TCP server can be set up using the Netty framework and the Hessian serialization mechanism. When such a configuration is used, attackers may be able to connect to the server and provide malicious serialized objects that, once deserialized, force it to execute arbitrary code. This can be abused to take control of the machine the server is running by way of remote code execution. This issue has not been fixed.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
61
EG Risk 61/100CISA SSVC

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
Severity100% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fixed version is listed under Patch Availability. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
63rd
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fixed version is listed under Patch Availability. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 18, 2023

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Oct 7, 2026
🔬 Proof of concept available. Fixed version listed under Patch Availability. Sources: github.
generic

XXL-RPC RCE (CVE-2023-45146) - vsociety

https://www.vicarius.io/vsociety/posts/xxl-rpc-rce-cve-2023-45146
github🟡 PoC Available

GHSL-2023-052: Unsafe deserialization in XXL-RPC - CVE-2023-45146 | GitHub Security Lab

https://securitylab.github.com/advisories/GHSL-2023-052_XXL-RPC/

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
mavencom.xuxueli:xxl-rpc-core—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)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
com.xuxueli:xxl-rpc-core1.2.0 ... 1.7.0 (12 versions)
  • every version through 1.7.0: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 34× 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 198 total refreshes for this CVE.

  1. 2026-10-10 19:57 UTCEPSS rescore
  2. 2026-10-09 20:05 UTCEPSS rescore
  3. 2026-10-08 17:06 UTCEPSS rescore
  4. 2026-10-07 23:46 UTCEPSS rescore
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  10. 2026-10-01 19:48 UTCEPSS rescore
  11. 2026-09-30 16:31 UTCEG score recompute
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  22. 2026-09-23 13:46 UTCEPSS rescore
  23. 2026-09-22 18:39 UTCOSV refresh
  24. 2026-09-20 20:14 UTCEPSS rescore
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  1. 2026-09-18 19:25 UTCEPSS rescore
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  3. 2026-09-16 14:06 UTCEPSS rescore
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  17. 2026-09-03 15:16 UTCOSV refresh
  18. 2026-09-02 14:09 UTCEPSS rescore
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  20. 2026-08-30 19:15 UTCEPSS rescore
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  22. 2026-08-28 21:39 UTCEPSS rescore
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  27. 2026-08-23 00:17 UTCEPSS rescore
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  30. 2026-08-19 17:02 UTCEPSS rescore
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  32. 2026-08-18 13:46 UTCEPSS rescore
  33. 2026-08-17 13:45 UTCEPSS rescore
  34. 2026-08-17 04:48 UTCOSV refresh
  35. 2026-08-16 14:54 UTCEPSS rescore
  36. 2026-08-16 02:12 UTCEPSS rescore
  37. 2026-08-15 01:28 UTCEPSS rescore
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  39. 2026-08-13 21:58 UTCEPSS rescore
  40. 2026-08-12 13:48 UTCEPSS rescore
  41. 2026-08-11 13:39 UTCEPSS rescore
  42. 2026-08-09 13:44 UTCEPSS rescore
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  44. 2026-08-08 16:35 UTCEPSS rescore
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  47. 2026-08-05 19:15 UTCEPSS rescore
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  49. 2026-08-03 10:34 UTCEPSS rescore
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  51. 2026-08-02 02:25 UTCEPSS rescore
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  53. 2026-08-01 23:06 UTCOSV refresh
  54. 2026-08-01 04:14 UTCEPSS rescore
  55. 2026-08-01 04:13 UTCEPSS rescore
  56. 2026-07-30 16:26 UTCEPSS rescore
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  58. 2026-07-30 01:28 UTCEPSS rescore
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  60. 2026-07-28 15:34 UTCEPSS rescore
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  62. 2026-07-26 14:52 UTCEPSS rescore
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  66. 2026-07-23 14:16 UTCEPSS rescore
  67. 2026-07-23 14:16 UTCEPSS rescore
  68. 2026-07-23 02:27 UTCEG score recompute
  69. 2026-07-22 23:13 UTCEG score recompute▲ 1.00
  70. 2026-07-22 14:06 UTCEPSS rescore
  71. 2026-07-21 15:23 UTCEPSS rescore
  72. 2026-07-21 15:23 UTCEPSS rescore
  73. 2026-07-20 17:06 UTCEPSS rescore
  74. 2026-07-19 14:29 UTCEPSS rescore
  75. 2026-07-19 02:27 UTCEPSS rescore

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Same product

1 shown

Maven:com.xuxueli:xxl-rpc-core

Frequently asked(5)

What is CVE-2023-45146?
CVE-2023-45146 is a critical vulnerability published on October 18, 2023. XXL-RPC is a high performance, distributed RPC framework. With it, a TCP server can be set up using the Netty framework and the Hessian serialization mechanism. When such a configuration is used, attackers may be able to connect to the server and provide malicious serialized objects that, once…
When was CVE-2023-45146 disclosed?
CVE-2023-45146 was first published on October 18, 2023, 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-2023-45146 actively exploited?
CVE-2023-45146 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-45146?
CVE-2023-45146 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2023-45146?
A fixed version for CVE-2023-45146 is listed under Patch Availability on this page: update to the version listed for your package.

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