CVE-2023-36328

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 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

1.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 69.2% 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

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

2023-09-01 00:00Z3 YR AGO

Last updated

2025-06-26 13:55Z1 YR AGO

Reserved

2023-06-21

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

09c2fe8ff639d3d788c46fd853dcd59e6511ba8e432dd8497f631381bc940c82

• github.comhttps://github.com/libtom/libtommath/pull/546
• lists.fedoraproject.orgFEDORA-2023-69b85312f0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3H2PFUTBKQUDSOJXQQS7LUSZQWT3JTW2/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-f357a25877https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ZUPWZGPFJ4JOI2NIP7YLRKZD5YXQTBK/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-f5680e3b4bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46GORAXZ34MHQNUGJBKS7PJ5NSMIAJGC/vendor-advisory
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00011.html