Is CVE-2020-25820 in the CISA KEV catalog?

No. CVE-2020-25820 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-25820?

CVE-2020-25820 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-25820?

CVE-2020-25820 has an EPSS score of 8.82% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-25820?

Upgrade bigbluebutton to 2.2.27 or later.

CVE & CISA-KEV Catalog

CVE-2020-25820

MEDIUMEPSS 95th pctl

6.5

CVSS v3

NVD

Description

BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.

CWE-918Server-Side Request Forgery (SSRF)

How to fix

Remediation Available

bigbluebuttonNVD

Affected:< 2.2.27Fixed in:2.2.27CVE-2020-25820derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

8.82%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch1

github.com

Exploit2

Third-Party Advisory2

Related Vulnerabilities

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-21893	High	8.2	100%	KEV + Ransom	-
CVE-2021-40438	Critical	9.0	100%	KEV	Fix
CVE-2021-34473	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-26855	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41040	High	8.8	100%	KEV + Ransom	Fix

Embed a live status badge for CVE-2020-25820

Markdown

[![CVE-2020-25820](https://tridentstack.com/cve/badge/CVE-2020-25820.svg)](https://tridentstack.com/cve/CVE-2020-25820)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-25820"><img src="https://tridentstack.com/cve/badge/CVE-2020-25820.svg" alt="CVE-2020-25820"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.