Is CVE-2022-27779 in the CISA KEV catalog?

No. CVE-2022-27779 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-27779?

CVE-2022-27779 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2022-27779?

CVE-2022-27779 has an EPSS score of 2.41% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-27779?

Upgrade curl on debian 12 to 7.83.1-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-27779

MEDIUMEPSS 82th pctl

5.3

CVSS v3

NVD

Description

libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without Public Suffix Listawareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.

CWE-201

How to fix

Remediation Available

curlDebian

Fixed in:7.83.1-1CVE-2022-27779

UniversalForwarderWindows application

Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

2.41%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Exploit1

hackerone.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-201 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-60188	High	7.5	2.9%	-	-
CVE-2017-16026	Medium	5.9	2.6%	-	Fix
CVE-2017-2582	Medium	6.5	2.5%	-	Fix
CVE-2020-26085	Critical	9.9	2.2%	-	Fix
CVE-2024-32825	High	7.5	2.0%	-	-
CVE-2016-10518	High	7.5	2.0%	-	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.