CVE-2023-40167

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

1.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 69.4% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L/A:N

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

2023-09-15 19:37Z3 YR AGO

Last updated

2025-02-13 17:03Z1 YR AGO

Reserved

2023-08-09

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-130Improper Handling of Length Parameter InconsistencyBase

Data version

5.1

Document digest

30e20d50dca9490869003645e37ab69d0289e02c6a589c3d9fa9c467a0904504

• github.comhttps://github.com/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6x_refsource_CONFIRM
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc9110#section-8.6x_refsource_MISC
• www.debian.orghttps://www.debian.org/security/2023/dsa-5507
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/09/msg00039.html