SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-21434

Improper input validation vulnerability in Galaxy Store prior to version 4.5.49.8 allows local attackers to execute JavaScript by launching a web page.

MEDIUM 6.1EPSS 12.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Improper input validation vulnerability in Galaxy Store prior to version 4.5.49.8 allows local attackers to execute JavaScript by launching a web page.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
12.88% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20, CWE-79
Affected
samsung/galaxy store
Source
mobile.security@samsung.com
EPSS trend
0%8%15%3 November 2026: 12.88%3 November 20263 November 2026

EPSS 12.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.