A buffer overflow vulnerability in FORMATS!Read_Utah_RLE+0x37a of Irfanview 4.57 allows attackers to execute arbitrary code via a crafted R…

published 2021-09-28 5y ago modified 2026-06-17 4mo ago also EUVD-2021-15996

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits: 0; none known

A buffer overflow vulnerability in FORMATS!Read_Utah_RLE+0x37a of Irfanview 4.57 allows attackers to execute arbitrary code via a crafted RLE file.

Is CVE-2021-29360 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-787 Out-of-bounds Write

References

github.com /moshekaplan/Research/tree/main/IrfanView
third-party-advisory

Sources

CVE List CVE-2021-29360
NVD CVE-2021-29360

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.