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CVE-2021-3580: nettle before 3.7.3 (exclusive), nettle 3.7.3; +6 more affected products
CVE-2021-3580. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.02708 (percentile 0.85608), scored 13-Oct-2026.
Affected technology
nettle · before 3.7.3 (exclusive)
nettle project
enterprise linux · 7.0
redhat
enterprise linux · 8.0
redhat
debian linux · 9.0
debian
ontap select deploy administration utility · Version not applicable in the source CPE
netapp
nettle · nettle 3.7.3
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
What an attacker can do
An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service. NVD’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-20
- CCR priority
- 30.7 /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
- 0.02708 · percentile 0.85608 · 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-2021-3580.html