CVE-2026-21045

HIGH

Samsung Mobile Devices - Out-of-Bounds Access

Title source: rule
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-21045. PoCs published by Filipemendonca1978.

AI-analyzed exploit summary This repository contains functional proof-of-concept exploit code for CVE-2026-21045, an out-of-bounds write vulnerability in Samsung Android devices' libimagecodec.quram.so library. The exploit leverages a 32-bit unsigned integer overflow in TIFF IFD tag parsing to bypass bounds checks and trigger memory corruption.

Description

Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 allows remote attackers to write out-of-bounds memory.

Exploits (1)

github WORKING POC
by Filipemendonca1978 · pythonpoc
https://github.com/Filipemendonca1978/CVE-2026-21045_and_CVE-2026-21048

This repository contains functional proof-of-concept exploit code for CVE-2026-21045, an out-of-bounds write vulnerability in Samsung Android devices' libimagecodec.quram.so library. The exploit leverages a 32-bit unsigned integer overflow in TIFF IFD tag parsing to bypass bounds checks and trigger memory corruption.

Classification
Working Poc 99%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Samsung Android devices with libimagecodec.quram.so (Quramsoft image codec) prior to SMR Jul-2026 Release 1
No auth needed
Prerequisites: Ability to deliver a malformed TIFF/DNG file to the target device (e.g., via email, web download, or MMS) · Target device must process the file using the vulnerable library (e.g., via Gallery app)
mistral-large-3 · analyzed Jul 16, 2026 Full analysis →

Scores

CVSS v4 8.3
EPSS 0.0046
EPSS Percentile 37.8%
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (1)
Samsung Mobile/Samsung Mobile Devices SMR Jul-2026 Release in Android 14, 15, 16
Published Jul 10, 2026
Tracked Since Jul 10, 2026