How severe is CVE-2023-45146?

CVE-2023-45146 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-45146 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45146?

CVE-2023-45146 affects Xxl-rpc Project Xxl-rpc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45146?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-45146 published?

CVE-2023-45146 was published on 2023-10-18 and last updated on 2026-06-17.

CVE-2023-45146

CVE-2023-45146 is a critical-severity vulnerability in Xxl-rpc Project Xxl-rpc with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Xxl-rpc Project Xxl-rpc
Published: 2023-10-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-45146?: 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.
How severe is CVE-2023-45146?: CVE-2023-45146 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-45146 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45146?: CVE-2023-45146 affects Xxl-rpc Project Xxl-rpc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45146?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-45146 published?: CVE-2023-45146 was published on 2023-10-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xxl-rpc_project:xxl-rpc:*:*:*:*:*:*:*:*

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