What is CVE-2023-30086?

CVE-2023-30086 is a medium-severity vulnerability in Libtiff, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-05-09.

How severe is CVE-2023-30086?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Libtiff

CVE-2023-30086

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Vulnerability class: Buffer Overflow

Published 2023-05-09 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Libtiff — versions 4.0.7

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

af854a3a-2127-422b-91ae-364da2661108 (Release Notes)
af854a3a-2127-422b-91ae-364da2661108 (Product)
gitlab.com/libtiff/libtiff/-/issues/538 (Exploit, Issue Tracking, Vendor Advisory)
security.netapp.com/advisory/ntap-20230616-0003/

Frequently asked questions

What is CVE-2023-30086?: CVE-2023-30086 is a medium-severity vulnerability in Libtiff, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-05-09.
How severe is CVE-2023-30086?: Medium severity. CVSS v3 base score is 5.5 out of 10.