What is CVE-2023-40745?

CVE-2023-40745 is a medium-severity vulnerability in Libtiff, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2023-10-05.

How severe is CVE-2023-40745?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Integer overflow in Libtiff

CVE-2023-40745

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

Vulnerability class: Integer Overflow

Published 2023-10-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Libtiff
NetApp Active Iq Unified Manager
Fedoraproject Fedora
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9 — versions 0:4.4.0-12.el9
Red Hat Enterprise Linux — versions 8.0, 9.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

access.redhat.com/errata/RHSA-2024:2289 (vendor-advisory)
access.redhat.com/security/cve/CVE-2023-40745 (Third Party Advisory, vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-40745?: CVE-2023-40745 is a medium-severity vulnerability in Libtiff, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2023-10-05.
How severe is CVE-2023-40745?: Medium severity. CVSS v3 base score is 6.5 out of 10.