What is CVE-2021-28427?

CVE-2021-28427 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 2023-08-11.

How severe is CVE-2021-28427?

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

Is CVE-2021-28427 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Xnview

CVE-2021-28427

Buffer Overflow vulnerability in XNView version 2.49.3, allows local attackers to execute arbitrary code via crafted TIFF file.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (16.7th percentile) — read the EPSS interpretation.

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.

Affected products

Xnview — versions 2.49.3
N/a — versions n/a

Weakness classification (CWE)

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

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-28427?: CVE-2021-28427 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 2023-08-11.
How severe is CVE-2021-28427?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-28427 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.