CVE-2021-46828

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

3.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 87.9% 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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-14.

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

2022-07-20 00:00Z4 YR AGO

Last updated

2026-10-14 12:12Z15 DAYS AGO

Reserved

2022-07-20

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:N/I:N/A:H

Weaknesses

• CWE-755Improper Handling of Exceptional ConditionsClass
• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

1a7952cc11c9770330d4c4a86d2dc64aabb09531b2c954854f51c62fa6ed8944

• git.linux-nfs.orghttp://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
• www.debian.orgDSA-5200https://www.debian.org/security/2022/dsa-5200vendor-advisory
• lists.debian.org[debian-lts-announce] 20220812 [SECURITY] [DLA 3071-1] libtirpc security updatehttps://lists.debian.org/debian-lts-announce/2022/08/msg00004.htmlmailing-list
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20221007-0004/
• security.gentoo.orgGLSA-202210-33https://security.gentoo.org/glsa/202210-33vendor-advisory
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-558014.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-561322.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html