Is CVE-2020-6811 in the CISA KEV catalog?

No. CVE-2020-6811 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-6811?

CVE-2020-6811 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2020-6811?

CVE-2020-6811 has an EPSS score of 3.19% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-6811?

Upgrade firefox on debian unstable to 74.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2020-6811

HIGHEPSS 87th pctl

8.8

CVSS v3

NVD

Description

The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CWE-77Command Injection

How to fix

Remediation Available

firefoxDebian

Fixed in:74.0-1CVE-2020-6811

firefoxUbuntu

Fixed in:74.0+build3-0ubuntu0.16.04.1USN-4299-1

Fixed in:74.0+build3-0ubuntu0.18.04.1USN-4299-1

thunderbirdUbuntu

Fixed in:1:68.7.0+build1-0ubuntu0.16.04.2USN-4335-1

Fixed in:1:68.7.0+build1-0ubuntu0.18.04.1USN-4328-1

DeveloperEditionWindows application

Affected:74.0Fixed in:74.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:74.0Fixed in:74.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:68.6.0Fixed in:68.6.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:68.6.0Fixed in:68.6.0Mozilla

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.19%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit1

bugzilla.mozilla.org

Vendor Advisory3

Third-Party Advisory2

Related Vulnerabilities

Other CWE-77 (Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2024-21887	Critical	9.1	100%	KEV + Ransom	-
CVE-2023-1671	Critical	9.8	100%	KEV	Fix
CVE-2023-1389	High	8.8	100%	KEV	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2012-1823	Critical	9.8	100%	KEV	Fix

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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.