Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | macOS | unspecified – < 11.6, unspecified – < 2021-005 | 11.6 |
| Apple | watchOS | unspecified – < 7.6 | 7.6 |
| Apple | iOS | unspecified – < 14.8 | 14.8 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
jeffssh/CVE-2021-30860 ★ 103 · Dec 25, 2021
Collection of materials relating to FORCEDENTRY
-
Levilutz/CVE-2021-30860 ★ 13 · Sep 18, 2021
Scan for evidence of CVE-2021-30860 (FORCEDENTRY) exploit
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- WID-SEC-2023-1424 Xerox FreeFlow Print Server für Solaris: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 6, 2025
References
- https://support.apple.com/en-us/HT212804
- https://support.apple.com/en-us/HT212805
- https://support.apple.com/en-us/HT212807
- https://support.apple.com/en-us/HT212806
- 20210917 APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina mailing-list
- 20210917 APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 mailing-list
- 20210917 APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 mailing-list
- 20210917 APPLE-SA-2021-09-13-2 watchOS 7.6.2 mailing-list
- 20210921 APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina mailing-list
- 20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 mailing-list
- 20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 mailing-list
- https://support.apple.com/kb/HT212824
- 20210924 APPLE-SA-2021-09-23-1 iOS 12.5.5 mailing-list
- [oss-security] 20220902 JBIG2 integer overflow fixed in Xpdf 4.04, Poppler 22.09.0 mailing-list
- GLSA-202209-21 vendor-advisory