CVE-2023-38406

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 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

0.94% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.5% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

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

2023-11-06 00:00Z2 YR AGO

Last updated

2025-11-04 16:10Z10 MO AGO

Reserved

2023-07-17

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-755Improper Handling of Exceptional ConditionsClass
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.2

Document digest

210bc783495d64983d5858786a99291ecef5f6d571ec4abeb91a822f79a6a47d

• github.comhttps://github.com/FRRouting/frr/pull/12884
• github.comhttps://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3
• lists.debian.org[debian-lts-announce] 20240428 [SECURITY] [DLA 3797-1] frr security updatehttps://lists.debian.org/debian-lts-announce/2024/04/msg00019.htmlmailing-list
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00007.html