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CVE-2021-22926: curl from 7.33.0 (inclusive), before 7.78.0 (exclusive); +22 more affected products
CVE-2021-22926. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.0982 (percentile 0.95465), scored 13-Oct-2026.
Affected technology
curl · from 7.33.0 (inclusive), before 7.78.0 (exclusive)
haxx
active iq unified manager · Version not applicable in the source CPE
netapp
clustered data ontap · Version not applicable in the source CPE
netapp
hci management node · Version not applicable in the source CPE
netapp
oncommand insight · Version not applicable in the source CPE
netapp
oncommand workflow automation · Version not applicable in the source CPE
netapp
snapcenter · Version not applicable in the source CPE
netapp
solidfire · Version not applicable in the source CPE
netapp
mysql server · from 5.7.0 (inclusive), through 5.7.35 (inclusive)
oracle
mysql server · from 8.0.0 (inclusive), through 8.0.26 (inclusive)
oracle
peoplesoft enterprise peopletools · 8.57
oracle
peoplesoft enterprise peopletools · 8.58
oracle
peoplesoft enterprise peopletools · 8.59
oracle
sinec infrastructure network services · before 1.0.1.1 (exclusive)
siemens
h300s firmware · Version not applicable in the source CPE
netapp
h300e firmware · Version not applicable in the source CPE
netapp
h500e firmware · Version not applicable in the source CPE
netapp
h500s firmware · Version not applicable in the source CPE
netapp
h700s firmware · Version not applicable in the source CPE
netapp
h700e firmware · Version not applicable in the source CPE
netapp
h410s firmware · Version not applicable in the source CPE
netapp
universal forwarder · from 8.2.0 (inclusive), before 8.2.12 (exclusive)
splunk
universal forwarder · from 9.0.0 (inclusive), before 9.0.6 (exclusive)
splunk
universal forwarder · 9.1.0
splunk
https://github.com/curl/curl · curll 7.33.0 to and include 7.77.0
Vendor not specified by the source
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
The source says if the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake. NVD’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-295, CWE-840
- CCR priority
- 32.5 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.0982 · percentile 0.95465 · 2026-10-13
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-14 16:01:16.619248+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-14 15:56:36.793806+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2021-22926.html