Samsung rlottie: Numeric truncation in gray_hline() leads to heap-based buffer overflow when rendering a crafted Lottie animation at native canvas size

published 2026-07-13 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-43257

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

Integer overflow or wraparound vulnerability in Samsung Open Source rlottie allows Overflow Buffers.

This issue affects .

Patch / fix

links 1

github.com/Samsung/rlottie#595 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-15551 updated 2026-07-13 cvss 5.5

rlottie: rlottie: Buffer overflow due to integer overflow

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

Affected products

Samsung Open Source rlottie

Classification

Weakness

CWE-190 Integer Overflow or Wraparound

References

github.com /Samsung/rlottie/pull/595
patch, vendor-advisory

Sources

CVE List CVE-2026-15551
NVD CVE-2026-15551

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