THREATPORT/VULNERABILITY/CVE-2021-21101
HIGH SEVERITY

CVE-2021-21101

Illustrator vulnerability

CVSS
8.8
EPSS
3.5%
EPSS pct
88th
Exploited
No known
Adobe Illustrator version 25.2 (and earlier) is affected by an Out-of-bounds Write vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected vendor
Adobe
Affected product
Illustrator
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2021-06-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2021-21101

  • Confirm whether Adobe Illustrator is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-21101.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-21101

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-21101 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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