SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-29118

An out-of-bounds read vulnerability exists when parsing a specially crafted file in Esri ArcReader 10.8.1 (and earlier) which allow an unauthenticated attacker to induce an information disclosure issue in the context of the current user.

MEDIUM 5.5EPSS 0.35%

Does this matter?

Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own.

Description

An out-of-bounds read vulnerability exists when parsing a specially crafted file in Esri ArcReader 10.8.1 (and earlier) which allow an unauthenticated attacker to induce an information disclosure issue in the context of the current user.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
0.35% probability · 28th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-125
Affected
esri/arcreader
Source
psirt@esri.com
EPSS trend
0%3%5%26 October 2026: 0.35%26 October 202626 October 2026

EPSS 0.3% since 26 October 2026; no change recorded yet. 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.