CVE-2020-7849: A vulnerability of uPrism.io CURIX(Video conferecing solution) could allow an unauthenticated attacker to exec

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HIGH 8.0DOWNGRADE

CVE-2020-7849 is a high-severity flaw (CVSS 8.0) affecting curix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability of uPrism.io CURIX(Video conferecing solution) could allow an unauthenticated attacker to execute arbitrary code. This vulnerability is due to insufficient input(server domain) validation. An attacker could exploit this vulnerability through crafted URL.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.0 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-20
Published	2021-02-17
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: uprism

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

Am I affected?

Timeline

2021-02-17 14:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

uprism curix DOWNGRADE

Affected: 1.3.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.6

1. Check installed version

apt-cache policy curix || rpm -q curix || curix --version

2. No fixed release: DOWNGRADE to a release before 1.3.6 (Debian / Ubuntu)

apt-cache madison curix sudo apt install curix=<VERSION_BEFORE_1.3.6> sudo apt-mark hold curix

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list curix sudo dnf downgrade curix-<VERSION_BEFORE_1.3.6> sudo dnf versionlock add curix

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2020-7849?

curix: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-7849 being exploited?

CVE-2020-7849 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-2020-7849 affect?

CVE-2020-7849 affects curix. Severity is high (CVSS 8.0). A vulnerability of uPrism.io CURIX(Video conferecing solution) could allow an unauthenticated attacker to execute arbitrary code. This vulnerability is due to insufficient input(server domain) validation. An attacker could exploit this vuln

How urgent is CVE-2020-7849?

Priority 46/100. High severity

References

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