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CVE-2021-42530

26
FAUCET Score

CVE-2021-42530 is a stack-based buffer overflow vulnerability in Adobe XMP Toolkit SDK versions 2021.07 and earlier, affecting products like Adobe and Debian Linux distributions. It carries a CVSS score of 7.8 (High) due to its potential for arbitrary code execution with high impact on confidentiality, integrity, and availability, requiring user interaction to open a crafted file. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has garnered some community discussion and media coverage.

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 11,616 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