CVE-2021-43090: An XML External Entity (XXE) vulnerability exists in soa-model before 1.6.4 in the WSDLParser function.

Q: How do I fix CVE-2021-43090?

soa model: upgrade to 1.6.4. Exact commands for each OS are on this page.

Q: Is CVE-2021-43090 being exploited?

CVE-2021-43090 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-43090 affect?

CVE-2021-43090 affects soa model. Severity is critical (CVSS 9.8). An XML External Entity (XXE) vulnerability exists in soa-model before 1.6.4 in the WSDLParser function.

Q: How urgent is CVE-2021-43090?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2021-43090 is a critical-severity flaw (CVSS 9.8) affecting soa model. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An XML External Entity (XXE) vulnerability exists in soa-model before 1.6.4 in the WSDLParser function.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-611
Published	2022-03-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: predic8

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-25 16:15 UTCPublished CVE record published
2026-06-17 04:10 UTCUpdated Record last modified

predic8 soa model UPGRADE

Affected: < 1.6.4

Fixed in: 1.6.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy soa-model || rpm -q soa-model || soa-model --version

2. UPGRADE to 1.6.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade soa-model

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade soa-model

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2021-43090?

soa model: upgrade to 1.6.4. Exact commands for each OS are on this page.

Is CVE-2021-43090 being exploited?

CVE-2021-43090 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-2021-43090 affect?

CVE-2021-43090 affects soa model. Severity is critical (CVSS 9.8). An XML External Entity (XXE) vulnerability exists in soa-model before 1.6.4 in the WSDLParser function.

How urgent is CVE-2021-43090?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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