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CVE-2021-42531

26
FAUCET Score

CVE-2021-42531 is a stack-based buffer overflow vulnerability in Adobe XMP Toolkit SDK version 2021.07 and earlier, affecting Adobe and Debian Linux distributions. This high-severity vulnerability (CVSS 7.8) requires user interaction, specifically opening a crafted file, to achieve arbitrary code execution with the privileges of the current user. While not currently listed in CISA's KEV catalog, its FAUCET Risk Score of 60/100 and community discussion exceeding 90% of all CVEs indicate significant concern. There are no known public exploits or Metasploit/Nuclei modules available, but media coverage suggests awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2021.07CPE matchmatch criteria
cpe:2.3:a:adobe:xmp_toolkit_software_development_kit:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
<= 2021.07CPE match
cpe:2.3:a:adobe:xmp_toolkit:*:*:*:*:*:java:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.72%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0372 is in the 89th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

adobevendor investigatingvia nvd_reference
View patch

References

lists.debian.org / debian-lts-announce/2025/08/msg00003.html
helpx.adobe.com / security/products/xmpcore/apsb21-108.html
Vendor Advisory
lists.debian.org / debian-lts-announce/2023/09/msg00032.html
Mailing ListThird Party Advisory