What is the CVSS score of CVE-2021-40709?

CVE-2021-40709 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.5%.

Photoshop 2020 CVE-2021-40709

HIGH

Classic Buffer Overflow (CWE-120)

2021-09-27 psirt@adobe.com

Buffer Overflow RCE Adobe Photoshop 2020 Photoshop 2021

7.8

CVSS 3.1 · Vendor: adobe

Severity by source

Vendor (adobe) PRIMARY

7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from Vendor (adobe) · only source for this CVE.

CVSS VectorVendor: adobe

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 27, 2021 - 16:15 cve.org

HIGH 7.8

DescriptionCVE.org

Adobe Photoshop versions 21.2.11 (and earlier) and 22.5 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted SVG 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.

AnalysisAI

Adobe Photoshop versions 21.2.11 (and earlier) and 22.5 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted SVG file. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Adobe Photoshop versions 21.2.11 (and earlier) and 22.5 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted SVG 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 products include: Adobe Photoshop 2020, Adobe Photoshop 2021.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.