CVE-2023-26819

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 14.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. 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

2025-04-19 00:00Z1 YR AGO

Last updated

2025-11-03 19:28Z11 MO AGO

Reserved

2023-02-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Low (CVSS 2.9)

CNA CVSS vector

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

Weaknesses

• CWE-440Expected Behavior ViolationBase

Data version

5.2

Document digest

aff6545e63bef712c601e0dff21b5642a25faf282c5679136ffb7f5da0324910

• github.comhttps://github.com/boofish/json_bugs/tree/main/cjson
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/06/msg00014.html