What is CVE-2023-46587?

CVE-2023-46587 is a high-severity vulnerability in Xnview, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-10-27.

How severe is CVE-2023-46587?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Xnview

CVE-2023-46587

Buffer Overflow vulnerability in XnView Classic v.2.51.5 allows a local attacker to execute arbitrary code via a crafted TIF file.

Vulnerability class: Buffer Overflow

Published 2023-10-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Xnview — versions 2.51.5

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/nasroabd/vulns/tree/main/XnView/2.51.5 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-46587?: CVE-2023-46587 is a high-severity vulnerability in Xnview, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-10-27.
How severe is CVE-2023-46587?: High severity. CVSS v3 base score is 7.8 out of 10.