`CVE-2021-22946` curl

Affected software	curl
Severity	7.5 High CVSS 3.1 3 scores
Weakness	CWE-325
Published	29 Sep 2021
Updated	14 Oct 2026

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 orCURLOPT_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.

CWE-319

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: yes, technical impact: partial.
Indexed PoC none indexed
EPSS 4.5% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review human Researcher
Record active

Decided by	Manual classification of this CVE in the legacy dataset
Finding	A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

Decided by

Manual classification of this CVE in the legacy dataset

Finding

A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N NVD Primary published

CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CISA-ADP Secondary

CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:P/I:N/A:N NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`	NVD	Primary	published
CVSS 3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`	CISA-ADP	Secondary
CVSS 2.0	5.0	none	`AV:N/AC:L/Au:N/C:P/I:N/A:N`	NVD	Primary

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update October 2022 ↗	CPU	2022-Q4	Oracle Essbase / Build (cURL) (21.3)
Oracle Critical Patch Update July 2022 ↗	CPU	2022-Q3	Oracle Commerce / Framework, Experience Manager (cURL) (11.3.2)
Oracle Critical Patch Update April 2022 ↗	CPU	2022-Q2	Oracle Communications / CNC BSF (cURL) (1.11.0) Oracle Communications / NSSF (cURL) (1.8.0) Oracle Communications / OC-CNE (cURL) (1.10.0) Oracle Communications / OCNRF (cURL) (1.15.0, 1.15.1) Oracle Communications / SCP (cURL) (1.15.0)
Oracle Critical Patch Update January 2022 ↗	CPU	2022-Q1	Oracle MySQL / Server: Compiling (cURL) (5.7.36 and prior, 8.0.27 and prior) Oracle PeopleSoft / File Processing (cURL) (8.57, 8.58, 8.59)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update October 2022 ↗

CPU

2022-Q4

Oracle Essbase / Build (cURL) (21.3)

Oracle Critical Patch Update July 2022 ↗

CPU

2022-Q3

Oracle Commerce / Framework, Experience Manager (cURL) (11.3.2)

Oracle Critical Patch Update April 2022 ↗

CPU

2022-Q2

Oracle Communications / CNC BSF (cURL) (1.11.0)
Oracle Communications / NSSF (cURL) (1.8.0)
Oracle Communications / OC-CNE (cURL) (1.10.0)
Oracle Communications / OCNRF (cURL) (1.15.0, 1.15.1)
Oracle Communications / SCP (cURL) (1.15.0)

Oracle Critical Patch Update January 2022 ↗

CPU

2022-Q1

Oracle MySQL / Server: Compiling (cURL) (5.7.36 and prior, 8.0.27 and prior)
Oracle PeopleSoft / File Processing (cURL) (8.57, 8.58, 8.59)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Commerce	Framework, Experience Manager (cURL)	11.3.2	11.3.2
Oracle Communications	CNC BSF (cURL)	1.11.0	1.11.0
Oracle Communications	NSSF (cURL)	1.8.0	1.8.0
Oracle Communications	OC-CNE (cURL)	1.10.0	1.10.0
Oracle Communications	OCNRF (cURL)	1.15.0, 1.15.1	1.15.0 · 1.15.1
Oracle Communications	SCP (cURL)	1.15.0	1.15.0
Oracle Essbase	Build (cURL)	21.3	21.3
Oracle MySQL	Server: Compiling (cURL)	5.7.36 and prior, 8.0.27 and prior
Oracle PeopleSoft	File Processing (cURL)	8.57, 8.58, 8.59	8.57 · 8.58 · 8.59

Products and versions

29 products, 41 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	apple	macos	generic	＜ 12.3
nvd	debian	debian linux	generic	9.0 · 10.0 · 11.0
nvd	fedoraproject	fedora	generic	33 · 35
nvd	haxx	curl	generic	≥ 7.20.0 and ＜ 7.79.0
nvd	netapp	cloud backup	generic	any version
nvd	netapp	clustered data ontap	generic	any version
nvd	netapp	h300e firmware	generic	any version
nvd	netapp	h300s firmware	generic	any version
nvd	netapp	h410s firmware	generic	any version
nvd	netapp	h500e firmware	generic	any version
nvd	netapp	h500s firmware	generic	any version
nvd	netapp	h700e firmware	generic	any version
nvd	netapp	h700s firmware	generic	any version
nvd	netapp	oncommand insight	generic	any version
nvd	netapp	oncommand workflow automation	generic	any version
nvd	netapp	snapcenter	generic	any version
nvd	netapp	solidfire baseboard management controller firmware	generic	any version
nvd	oracle	commerce guided search	generic	11.3.2
nvd	oracle	communications cloud native core binding support function	generic	1.11.0 · 22.1.3
nvd	oracle	communications cloud native core console	generic	22.2.0
nvd	oracle	communications cloud native core network function cloud native environment	generic	1.10.0
nvd	oracle	communications cloud native core network repository function	generic	1.15.0 · 1.15.1 · 22.1.0 · 22.2.0
nvd	oracle	communications cloud native core network slice selection function	generic	1.8.0
nvd	oracle	communications cloud native core security edge protection proxy	generic	22.1.1
nvd	oracle	communications cloud native core service communication proxy	generic	1.15.0
nvd	oracle	mysql server	generic	≥ 5.7.0 and ≤ 5.7.35 · ≥ 8.0.0 and ≤ 8.0.26
nvd	oracle	peoplesoft enterprise peopletools	generic	8.57 · 8.58 · 8.59
nvd	siemens	sinec infrastructure network services	generic	＜ 1.0.1.1
nvd	splunk	universal forwarder	generic	≥ 8.2.0 and ＜ 8.2.12 · ≥ 9.0.0 and ＜ 9.0.6 · 9.1.0

Source

Vendor

Product

Scheme

Affected versions

nvd

apple

macos

generic

＜ 12.3

nvd

debian

debian linux

generic

9.0 · 10.0 · 11.0

nvd

fedoraproject

fedora

generic

33 · 35

nvd

haxx

curl

generic

≥ 7.20.0 and ＜ 7.79.0

nvd

netapp

cloud backup

generic

any version

nvd

netapp

clustered data ontap

generic

any version

nvd

netapp

h300e firmware

generic

any version

nvd

netapp

h300s firmware

generic

any version

nvd

netapp

h410s firmware

generic

any version

nvd

netapp

h500e firmware

generic

any version

nvd

netapp

h500s firmware

generic

any version

nvd

netapp

h700e firmware

generic

any version

nvd

netapp

h700s firmware

generic

any version

nvd

netapp

oncommand insight

generic

any version

nvd

netapp

oncommand workflow automation

generic

any version

nvd

netapp

snapcenter

generic

any version

nvd

netapp

solidfire baseboard management controller firmware

generic

any version

nvd

oracle

commerce guided search

generic

11.3.2

nvd

oracle

communications cloud native core binding support function

generic

1.11.0 · 22.1.3

nvd

oracle

communications cloud native core console

generic

22.2.0

nvd

oracle

communications cloud native core network function cloud native environment

generic

1.10.0

nvd

oracle

communications cloud native core network repository function

generic

1.15.0 · 1.15.1 · 22.1.0 · 22.2.0

nvd

oracle

communications cloud native core network slice selection function

generic

1.8.0

nvd

oracle

communications cloud native core security edge protection proxy

generic

22.1.1

nvd

oracle

communications cloud native core service communication proxy

generic

1.15.0

nvd

oracle

mysql server

generic

≥ 5.7.0 and ≤ 5.7.35 · ≥ 8.0.0 and ≤ 8.0.26

nvd

oracle

peoplesoft enterprise peopletools

generic

8.57 · 8.58 · 8.59

nvd

siemens

sinec infrastructure network services

generic

＜ 1.0.1.1

nvd

splunk

universal forwarder

generic

≥ 8.2.0 and ＜ 8.2.12 · ≥ 9.0.0 and ＜ 9.0.6 · 9.1.0

Earlier manual review

A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** HTTP, FILE PROCESSING (CURL), MULTIPLE, NO AUTH REMOTE EXPLOIT, SERVER: COMPILING (CURL) **Products:** ORACLE PEOPLESOFT, MYSQL SERVER, PEOPLESOFT ENTERPRISE PEOPLETOOLS, ORACLE MYSQL

References

URL	Tags
http://seclists.org/fulldisclosure/2022/Mar/29	Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	Patch, Third Party Advisory
https://hackerone.com/reports/1334111	Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html	Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/	Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/	Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0003/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20220121-0008/	Third Party Advisory

URL

Timeline

Published	2021-09-29	By the CVE Program.
NVD record modified	2026-10-14	NVD's own last-modified date for this record.

Published

2021-09-29

By the CVE Program.

NVD record modified

2026-10-14

NVD's own last-modified date for this record.

How VRT decided (5 of 24 rules ran)

5 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Outside Waratek scope Found in legacy manual classifications

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

NVD ↗ · CVE.org ↗