CVE-2024-23573: HCL Aftermarket EPC Lucky 13 timing attack in TLS/DTLS

CVE-2024-23573 · Severity: low · CVSS 3.7 · Published 2026-07-17

HCL Aftermarket EPC, a platform used for managing electronic parts catalogs, is susceptible to a known cryptographic timing attack. An attacker positioned between the user and the server could potentially decrypt small amounts of sensitive information from encrypted sessions. While the risk is rated as low due to the technical difficulty of the attack, it could lead to the exposure of private data.

Technologies: HCL Software Aftermarket EPC. Vendors: HCL Software.

Quick answers

Is CVE-2024-23573 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-23573 being exploited in the wild.
How severe is CVE-2024-23573?
Low severity, with a CVSS score of 3.7, published 17 July 2026.
Which products and versions are affected?
HCL Software Aftermarket EPC 1.0.0.
Is there a fix for CVE-2024-23573?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2024-23573 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2024-23573?
Check whether you run HCL Software Aftermarket EPC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

HCL Aftermarket EPC version 1.0.0 is vulnerable to the 'Lucky 13' timing attack (CWE-208). This vulnerability exists in the application's handling of TLS 1.1, TLS 1.2, DTLS 1.0, and DTLS 1.2, as well as legacy protocols like SSL 3.0 and TLS 1.0. The flaw stems from differences in processing time for different padding errors in CBC-mode ciphers. A network-based attacker performing a man-in-the-middle attack can use these timing differences as a side-channel to potentially decrypt sensitive information from the encrypted stream. The attack requires high complexity and a large number of samples to be successful.

Affected products

  • HCL Software Aftermarket EPC 1.0.0

Timeline

  • 2026-07-17: advisory: NVD published the CVE record based on HCL Software's disclosure.

References

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