CVE-2021-33560

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-06-08 00:00Z5 YR AGO

Last updated

2025-12-03 14:39Z9 MO AGO

Reserved

2021-05-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-325Missing Cryptographic StepBase
• CWE-203Observable DiscrepancyBase
• CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass

Data version

5.2

Document digest

91a024c10582789e6cde5762e4b8a9ef41d0f4bb862a5ff2b546001bd297776c

• dev.gnupg.orghttps://dev.gnupg.org/T5328
• lists.debian.org[debian-lts-announce] 20210624 [SECURITY] [DLA 2691-1] libgcrypt20 security updatehttps://lists.debian.org/debian-lts-announce/2021/06/msg00021.htmlmailing-list
• lists.fedoraproject.orgFEDORA-2021-24d4e06195https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-31fdc84207https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/vendor-advisory
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.html
• dev.gnupg.orghttps://dev.gnupg.org/T5466
• dev.gnupg.orghttps://dev.gnupg.org/T5305
• dev.gnupg.orghttps://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.html
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.html
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.html
• security.gentoo.orgGLSA-202210-13https://security.gentoo.org/glsa/202210-13vendor-advisory