A loop with an unreachable exit condition can be triggered by passing a crafted JPEG file to the Lepton image compression tool, resulting i…

published 2022-11-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51474

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits: 0; none known

A loop with an unreachable exit condition can be triggered by passing a crafted JPEG file to the Lepton image compression tool, resulting in a denial-of-service.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-14)

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

tenable.com https://tenable.com/security/research/TRA-2022-35 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

n/a Dropbox Lepton

Classification

Weakness

CWE-835 Loop with Unreachable Exit Condition

References

tenable.com /security/research/TRA-2022-35
exploit, third-party-advisory

Sources

CVE List CVE-2022-4104
NVD CVE-2022-4104

Fencer Vulns 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.

Summary