CVE-2023-4807

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

0.86% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 55.9% 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

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

2023-09-08 11:01Z2 YR AGO

Last updated

2025-08-27 20:42Z1 YR AGO

Reserved

2023-09-06

Assigning CNA

openssl

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-440Expected Behavior ViolationBase
• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.1

Document digest

bf94cbbe8c93e1867cf587333675523cdae9ce0302a018e1522bad816752822f

• www.openssl.orgOpenSSL Advisoryhttps://www.openssl.org/news/secadv/20230908.txtvendor-advisory
• git.openssl.org3.1.3 git commithttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4bfac4471f53c4f74c8d81020beb938f92d84ca5patch
• git.openssl.org3.0.11 git commithttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6754de4a121ec7f261b16723180df6592cbb4508patch
• git.openssl.org1.1.1w git commithttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a632d534c73eeb3e3db8c7540d811194ef7c79ffpatch
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20230921-0001/