HOMEVULNERABILITIESCVE-2022-27779
MEDIUM

CVE-2022-27779

CWE-201Published: June 2, 2022· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official 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 List](https://publicsuffix.org/)awareness. 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.

NVD Source

Technical Analysis

CVE-2022-27779 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
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

Affected Vendors & Products

haxx1 product(s)
curl
netapp13 product(s)
hci bootstrap oshci compute nodeclustered data ontapsolidfire\, enterprise sds \& hci storage nodesolidfire \& hci management nodeh410s firmwareh410sh700s firmwareh700sh500s firmwareh500sh300s firmware+1
splunk1 product(s)
universal forwarder
Source: NVD CPE · 16 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://hackerone.com/reports/1553301
ADVISORYhttps://security.gentoo.org/glsa/202212-01
ADVISORYhttps://security.netapp.com/advisory/ntap-20220609-0009/
ADVISORYhttps://hackerone.com/reports/1553301
ADVISORYhttps://security.gentoo.org/glsa/202212-01
ADVISORYhttps://security.netapp.com/advisory/ntap-20220609-0009/

All References (6)

→
https://hackerone.com/reports/1553301Exploit · Third Party Advisory
→
https://security.gentoo.org/glsa/202212-01Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
→
https://hackerone.com/reports/1553301Exploit · Third Party Advisory
→
https://security.gentoo.org/glsa/202212-01Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory

Quick Facts

CVE IDCVE-2022-27779
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-201
CISA KEVNo
Affected3 vendor(s)
PublishedJun 2, 2022

Related CVEs (CWE-201)

CVE-2025-49408
10.0
CVE-2020-27134
9.9
CVE-2020-26085
9.9
CVE-2020-27133
9.9
CVE-2020-27132
9.9
CVE-2020-27127
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-27779 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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