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CVE-2021-22946

Published: Sep 29, 2021Updated: Apr 16, 2026 Sources: CVE List NVD BDU csafCWE-325
7.5HIGH
NVD MITRE
EPSS Score
4.5%
Top 9.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-325CWE-319

Affected Products

netapp
commercial·US
cloud backup
Hardware Firmware
clustered data ontap
Hardware Firmware
oncommand insight
Hardware Firmware
oncommand workflow automation
Hardware Firmware
snapcenter
Hardware Firmware
h300s firmware
Hardware Firmware
h500s firmware
Hardware Firmware
h700s firmware
Hardware Firmware
oracle
commercial·USaka oracle corp.
communications cloud native core binding support function
Communications
communications cloud native core network function cloud native environmentOn-premDatabase
Databases / data-warehouse-analytics
communications cloud native core network repository functionOn-premDatabase
Databases / data-warehouse-analytics
communications cloud native core network slice selection functionOn-premWeb App
Communications
communications cloud native core service communication proxyOn-prem
Networking Infrastructure / router-switch
mysql serverOn-premDatabase
Databases / relational
peoplesoft enterprise peopletoolsOn-premWeb App
Enterprise Software / itsm-monitoring
commerce guided searchOn-prem
Databases / data-warehouse-analytics
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
Red Hat Inc.
commercial·USaka red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
Red Hat Software CollectionsOn-prem
Operating Systems / linux-distro
haxx
oss-project·SEaka haxx.se
curl
OSS Libraries
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
and 19 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-22946?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

http://seclists.org/fulldisclosure/2022/Mar/29
seclists.org
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
cert-portal.siemens.com
https://hackerone.com/reports/1334111
hackerone.com
and 42 more references View all →

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