Is CVE-2019-18886 in the CISA KEV catalog?

No. CVE-2019-18886 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-18886?

CVE-2019-18886 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2019-18886?

CVE-2019-18886 has an EPSS score of 1.55% (72th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-18886?

Upgrade symfony on debian 11 to 4.3.8+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-18886

MEDIUMEPSS 72th pctl

5.3

CVSS v3

NVD

Description

An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.

CWE-203

How to fix

Remediation Available

symfonyDebian

Fixed in:4.3.8+dfsg-1CVE-2019-18886

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.55%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Vendor Advisory1

symfony.com

Release Notes2

Related Vulnerabilities

Other CWE-203 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-5753	Medium	5.6	94%	-	Fix
CVE-2003-0190	Medium	5.0	77%	-	Fix
CVE-2017-5715	Medium	5.6	74%	-	Fix
CVE-2018-3639	Medium	5.5	61%	-	Fix
CVE-2023-28770	High	7.5	58%	-	Fix
CVE-2004-1602	Medium	5.0	31%	-	-

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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.