CVE-2023-49298

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

1.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 66.9% 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:H/A:N

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2023-11-24 00:00Z2 YR AGO

Last updated

2025-11-03 19:28Z11 MO AGO

Reserved

2023-11-24

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:N/I:H/A:N

Weaknesses

• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.2

Document digest

a50fec47b0d71a7a26f1cbe1abf45232b79f1c14189676d131c6c26f6a62fa10

• github.comhttps://github.com/openzfs/zfs/pull/15571
• github.comhttps://github.com/openzfs/zfs/issues/15526
• bugs.freebsd.orghttps://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308
• news.ycombinator.comhttps://news.ycombinator.com/item?id=38405731
• web.archive.orghttps://web.archive.org/web/20231124172959/https://www.ibm.com/support/pages/how-remove-missing%C2%A0newline%C2%A0or%C2%A0line%C2%A0too%C2%A0long-error-etchostsallow%C2%A0and%C2%A0etchostsdeny-files
• github.comhttps://github.com/openzfs/zfs/releases/tag/zfs-2.2.2
• github.comhttps://github.com/openzfs/zfs/releases/tag/zfs-2.1.14
• www.theregister.comhttps://www.theregister.com/2023/12/04/two_new_versions_of_openzfs/
• bugs.gentoo.orghttps://bugs.gentoo.org/917224
• news.ycombinator.comhttps://news.ycombinator.com/item?id=38770168
• lists.debian.org[debian-lts-announce] 20240318 [SECURITY] [DLA 3766-1] zfs-linux security updatehttps://lists.debian.org/debian-lts-announce/2024/03/msg00019.htmlmailing-list
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/04/msg00009.html