Vulnerability Report

CVE-2021-30860

RCE CISA KEV Active

Title: PDF Arbitrary Code Execution

RCE

Proof Of Concept

PoC Available for CVE-2021-30860

CWE Category CWE-190
Published Date Aug 24, 2021
Modified Date Oct 27, 2025
Exploit Status Available
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
75.99%

Vulnerability Summary

CVE-2021-30860: An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Impacted Vendors

X
xpdf 1
P
poppler 1
X
xpdfreader 1
F
freedesktop 1
F
foolabs 1

Reference Links

http://seclists.org/fulldisclosure/2021/Sep/25 http://seclists.org/fulldisclosure/2021/Sep/26 http://seclists.org/fulldisclosure/2021/Sep/27 http://seclists.org/fulldisclosure/2021/Sep/28 http://seclists.org/fulldisclosure/2021/Sep/38 http://seclists.org/fulldisclosure/2021/Sep/39 http://seclists.org/fulldisclosure/2021/Sep/40 http://seclists.org/fulldisclosure/2021/Sep/50 http://www.openwall.com/lists/oss-security/2022/09/02/11 https://security.gentoo.org/glsa/202209-21 https://support.apple.com/en-us/HT212804 https://support.apple.com/en-us/HT212805 https://support.apple.com/en-us/HT212806 https://support.apple.com/en-us/HT212807 https://support.apple.com/kb/HT212824 http://seclists.org/fulldisclosure/2021/Sep/25 http://seclists.org/fulldisclosure/2021/Sep/26 http://seclists.org/fulldisclosure/2021/Sep/27 http://seclists.org/fulldisclosure/2021/Sep/28 http://seclists.org/fulldisclosure/2021/Sep/38 http://seclists.org/fulldisclosure/2021/Sep/39 http://seclists.org/fulldisclosure/2021/Sep/40 http://seclists.org/fulldisclosure/2021/Sep/50 http://www.openwall.com/lists/oss-security/2022/09/02/11 https://security.gentoo.org/glsa/202209-21 https://support.apple.com/en-us/HT212804 https://support.apple.com/en-us/HT212805 https://support.apple.com/en-us/HT212806 https://support.apple.com/en-us/HT212807 https://support.apple.com/kb/HT212824 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30860
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-30860 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Levilutz/CVE-2021-30860
View Code
GitHub https://github.com/30440r/gex
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.