PatchTheCVECVE-2026-56455: HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS)
CVE-2026-56455 is a medium-severity flaw (CVSS 5.3) affecting dfxanalytics. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memory container, which can cause the system to crash or become unresponsive. To mitigate this flaw, comprehensive input length checks must be implemented and enforced on both the client and server sides.
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 61%) |
| CISA exploited list | No |
| Weakness | CWE-121 |
| Published | 2026-07-16 |
| Last modified | 2026-10-24 |
Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-56455?
dfxanalytics: upgrade to newer than 3.0. Exact commands for each OS are on this page.
Is CVE-2026-56455 being exploited?
CVE-2026-56455 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-56455 affect?
CVE-2026-56455 affects dfxanalytics. Severity is medium (CVSS 5.3). HCL DFXAnalytics is affected by a Buffer Overflow vulnerability that can lead to a Denial of Service (DoS). The application fails to properly validate input sizes, allowing an attacker to pass an excessive amount of information into a memor
How urgent is CVE-2026-56455?
Priority 33/100. Remotely exploitable, no login, no user action
Related CVEs
- CVE-2026-56456 MEDIUM 5.3 UPGRADE HCL DFXAnalytics is affected by an Internal File Path Disclosure vulnerability
- CVE-2026-56454 MEDIUM 5.9 UPGRADE HCL DFXAnalytics is affected by a Deprecated Protocol vulnerability due to the use of TLS 1.0 and TLS 1.1
- CVE-2026-56453 MEDIUM 5.5 UPGRADE HCL DFXAnalytics is affected by an Account Takeover via Response Manipulation vulnerability
- CVE-2026-35145 LOW 3.1 UPGRADE HCL DFXAnalytics is affected by a Missing HTTP Strict-Transport-Security Header vulnerability
- CVE-2026-35140 LOW 3.0 UPGRADE HCL DFXAnalytics is affected by a Missing Secure Attribute in Encrypted Session (SSL) Cookie vulnerability