HOME VULNERABILITIESCVE-2022-27781

HIGH

CVE-2022-27781

CWE-400Published: June 2, 2022· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.

Technical Analysis

CVE-2022-27781 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.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Affected Vendors & Products

Debian1 product(s)

debian linux

haxx1 product(s)

curl

netapp13 product(s)

hci bootstrap oshci compute nodeclustered data ontapsolidfire\, enterprise sds \& hci storage nodesolidfire \& hci management nodeh300s firmwareh300sh500s firmwareh500sh700s firmwareh700sh410s firmware+1

splunk1 product(s)

universal forwarder

Source: NVD CPE · 18 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

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/1555441

ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/08/msg00017.html

ADVISORYhttps://security.gentoo.org/glsa/202212-01

ADVISORYhttps://security.netapp.com/advisory/ntap-20220609-0009/

ADVISORYhttps://www.debian.org/security/2022/dsa-5197

ADVISORYhttps://hackerone.com/reports/1555441

ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/08/msg00017.html

ADVISORYhttps://security.gentoo.org/glsa/202212-01

ADVISORYhttps://security.netapp.com/advisory/ntap-20220609-0009/

ADVISORYhttps://www.debian.org/security/2022/dsa-5197

ADVISORYhttps://hackerone.com/reports/1555441

All References (11)

→

https://hackerone.com/reports/1555441Exploit · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List · Third Party Advisory

→

https://security.gentoo.org/glsa/202212-01Third Party Advisory

→

https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory

→

https://www.debian.org/security/2022/dsa-5197Mailing List · Third Party Advisory

→

https://hackerone.com/reports/1555441Exploit · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List · Third Party Advisory

→

https://security.gentoo.org/glsa/202212-01Third Party Advisory

→

https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory

→

https://www.debian.org/security/2022/dsa-5197Mailing List · Third Party Advisory

→

https://hackerone.com/reports/1555441Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2022-27781

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-400

CISA KEVNo

Affected4 vendor(s)

PublishedJun 2, 2022

Related CVEs (CWE-400)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2022-27781 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.

← All Vulnerabilities·Search for CVE-2022-27781·NVD