CVE-2022-4378

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total 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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. 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

2023-01-05 00:00Z3 YR AGO

Last updated

2025-04-10 14:19Z1 YR AGO

Reserved

2022-12-09

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

6160e0a7db17dac41ef5e956fb8c6d08c28e73c2e8277ba9efdcac38c822e6a3

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2152548
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-avoid-integer-type-confusion-in-get_proc_long.patch
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-6.0/proc-proc_skip_spaces-shouldn-t-think-it-is-working-on-c-strings.patch
• seclists.orghttps://seclists.org/oss-sec/2022/q4/178
• packetstormsecurity.comhttp://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html