HCL BigFix Mobile / Modern Client Management is vulnerable to unauthenticated XML interaction

published 2022-05-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14521

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

The software may be vulnerable to both Un-Auth XML interaction and unauthenticated device enrollment.

Patch / fix

fixed in 2

hcltech bigfix_mobile 2.1
hcltech modern_client_management 2.1

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

HCL Software HCL BigFix Mobile / Modern Client Management

Classification

Weakness

CWE-112 Missing XML Validation

References

support.hcltechsw.com /csm?id=kb_article&sysparm_article=KB0098028
vendor-advisory

Sources

CVE List CVE-2021-27780
NVD CVE-2021-27780

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary