CVE-2021-46848

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

2.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.1% of scored records. A rank, not a probability.

NVD base score

9.1 (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:H

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

2022-10-24 00:00Z3 YR AGO

Last updated

2025-05-07 14:32Z1 YR AGO

Reserved

2022-10-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-193Off-by-one ErrorBase

Data version

5.1

Document digest

f32fb14fc612a27bd752a6d04480aae04a0daa778afd5aae87db813508e78b08

• gitlab.comhttps://gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5
• gitlab.comhttps://gitlab.com/gnutls/libtasn1/-/issues/32
• bugs.gentoo.orghttps://bugs.gentoo.org/866237
• lists.fedoraproject.orgFEDORA-2022-061f857481https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGO7XST4EIJGX4B2ITZCYSWM24534BSU/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-3c933ffacahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV4SHDJF2XLB4CUPTBPQQ6CLGZ5LKXPZ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-19056934a7https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V5LWOGF7QRMNFRUCZY6TDYQJVFI6MOQ2/vendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20221118-0006/
• lists.fedoraproject.orgFEDORA-2022-3f9ee1ad91https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ECM2ELTVRYV4BZ5L5GMIRQE27RFHPAQ6/vendor-advisory
• lists.debian.org[debian-lts-announce] 20230109 [SECURITY] [DLA 3263-1] libtasn1-6 security updatehttps://lists.debian.org/debian-lts-announce/2023/01/msg00003.htmlmailing-list