# CVE-2026-108013: HCL BigFix Platform CA certificate validation bypass

Source: https://junglewise.ai/threats/cve-2026-108013-bigfix-platform-uses-mozilla-ca-certificate-bundle-pem-versions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-24. Updated: 2026-10-24  
License: CC BY 4.0 with a link back

CVE-2026-108013 · Severity: medium · CVSS 6.8 · Published 2026-10-24

HCL BigFix Platform uses Mozilla's CA certificate bundle to verify the identity of remote servers when downloading files. Versions of this bundle dated before October 20, 2026 still trusted certificates whose private keys have been compromised, allowing on-path attackers to impersonate servers and modify downloaded files. Upgrading to BES Support v1520 or later resolves the issue.

Vendors: [HCL](https://junglewise.ai/threats/vendors/hcl).

## Quick answers

**Is CVE-2026-108013 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108013 being exploited in the wild.

**How severe is CVE-2026-108013?** Medium severity, with a CVSS score of 6.8, published 24 October 2026.

**Which products and versions are affected?** HCL BigFix Platform before BES Support v1520.

**Is there a fix for CVE-2026-108013?** Yes: fixed in BES Support v1520 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-108013 attacked?** It is attacked over the network or from the adjacent network, in a network appliance.

**Am I affected by CVE-2026-108013?** Check whether you run HCL BigFix Platform 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.

## How to fix

- Fixed in BES Support v1520 and later

## Technical details

BigFix Platform relies on Mozilla's CA certificate bundle (PEM format) to validate TLS certificates presented by remote servers. Bundles dated before 2026/10/20 contained entries for compromised certificate authorities, allowing an on-path attacker to intercept connections and serve malicious content. The vulnerability requires an active network position between the client and server.

## Affected products

- HCL BigFix Platform before BES Support v1520

## Timeline

- 2026-10-24: disclosed

## References

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0134758](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0134758)