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CVE-2021-30860

Apple Multiple Products Integer Overflow

7.8 HIGHActively exploited (CISA KEV)EPSS 76.0%
  1. Published24 Aug 2021
  2. Added to CISA KEV3 Nov 2021
  3. Remediation due17 Nov 2021
Actively exploited (CISA KEV)

Apple iOS, iPadOS, macOS, and watchOS CoreGraphics contain an integer overflow vulnerability which may allow code execution when processing a maliciously crafted PDF. The vulnerability is also known under the moniker of FORCEDENTRY.

Added to KEV: 3 Nov 2021Federal remediation due: 17 Nov 2021

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Freedesktop Poppler< 22.09.0
Xpdfreader Xpdf< 4.04
Apple iPadOS< 14.8
Apple iPhone OS≥ 13.0 < 14.8 · < 12.5.5
Apple macOS< 11.6
Apple Mac OS X≥ 10.15 < 10.15.7 · 10.15.7
Apple Watchos< 7.6.2

Remediation

Fixed in
Freedesktop Poppler≥ 22.09.0
Xpdfreader Xpdf≥ 4.04
Apple iPadOS≥ 14.8
Apple iPhone OS≥ 14.8
Apple macOS≥ 11.6
Apple Mac OS X≥ 10.15.7
Apple Watchos≥ 7.6.2

References

and 6 more references

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Frequently asked

Is CVE-2021-30860 being actively exploited?

Yes. CVE-2021-30860 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2021-30860?

CVE-2021-30860 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 76.0% probability of exploitation.

Which products are affected by CVE-2021-30860?

Affected products include Freedesktop Poppler, Xpdfreader Xpdf, Apple iPadOS, Apple iPhone OS, Apple macOS, and 2 more.

How do I fix CVE-2021-30860?

Upgrade affected software to a fixed version, for example Freedesktop Poppler 22.09.0, Xpdfreader Xpdf 4.04, Apple iPadOS 14.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2021-30860 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.