# CVE-2024-23577: HCL Aftermarket EPC Host header poisoning

Source: https://junglewise.ai/threats/cve-2024-23577-hcl-aftermarket-epc-host-header-poisoning  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-17. Updated: 2026-07-17  
License: CC BY 4.0 with a link back

CVE-2024-23577 · Severity: medium · CVSS 4.3 · Published 2026-07-17

HCL Aftermarket EPC, a platform used for managing electronic parts catalogs, is vulnerable to a security flaw where it fails to verify the identity of the server requested by a user. An attacker could exploit this to redirect users to malicious websites or interfere with how the application communicates, potentially leading to the theft of sensitive information or unauthorized access to user sessions. This issue primarily affects systems using the standard HTTP protocol without proper header validation.

Technologies: [HCL Software Aftermarket EPC](https://junglewise.ai/threats/technologies/aftermarket-epc). Vendors: [HCL Software](https://junglewise.ai/threats/vendors/hcl-software).

## Quick answers

**Is CVE-2024-23577 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-23577 being exploited in the wild.

**How severe is CVE-2024-23577?** Medium severity, with a CVSS score of 4.3, published 17 July 2026.

**Which products and versions are affected?** HCL Software Aftermarket EPC 1.0.0.

**Is there a fix for CVE-2024-23577?** 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-2024-23577 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2024-23577?** 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 Host header poisoning due to improper input validation (CWE-20) of the HTTP Host header. The application accepts arbitrary hostnames provided in the header when communicating via the HTTP protocol. A remote, unauthenticated attacker can exploit this by sending a specially crafted request to the server. Successful exploitation can lead to various attacks, including web cache poisoning, password reset poisoning, or bypassing security controls that rely on the Host header for routing or domain-specific logic. The vulnerability is confirmed in version 1.0.0.

## Affected products

- HCL Software Aftermarket EPC 1.0.0

## Timeline

- 2026-07-17: advisory: NVD and HCL published the vulnerability details.

## References

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132294](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132294)

## Related threats

- [HCL Aftermarket EPC information disclosure via HTTP OPTIONS method](https://junglewise.ai/threats/cve-2024-42214-hcl-aftermarket-epc-information-disclosure-via-http-options)
- [HCL Aftermarket EPC permissive CORS policy](https://junglewise.ai/threats/cve-2024-23578-hcl-aftermarket-epc-permissive-cors-policy)
- [HCL Aftermarket EPC information disclosure via detailed error messages](https://junglewise.ai/threats/cve-2024-23575-hcl-aftermarket-epc-information-disclosure-via-detailed-error)
- [HCL Aftermarket EPC user enumeration via response discrepancy](https://junglewise.ai/threats/cve-2024-23574-hcl-aftermarket-epc-user-enumeration-via-response-discrepancy)
- [HCL Aftermarket EPC Lucky 13 timing attack in TLS/DTLS](https://junglewise.ai/threats/cve-2024-23573-hcl-aftermarket-epc-lucky-13-timing-attack-in-tls-dtls)