CVE-2021-30860

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.760 · 100 %ileexploit · PoCDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 2 exploits · PoC

Likely / severe?

76.0% (100th) EPSS

CVSS 6.8 · medium

Is it mine?

29 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2021-11-03remediate by 2021-11-17

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-26

Apple Multiple Products Integer Overflow Vulnerability

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

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USprimaryCWE-190US

exploits (2)

Public proof-of-concept and weaponised exploit code.

Levilutz/CVE-2021-30860Scan for evidence of CVE-2021-30860 (FORCEDENTRY) exploitPoC · poc_in_github
jeffssh/CVE-2021-30860Collection of materials relating to FORCEDENTRYPoC · poc_in_github

affected products (29)

Products and version ranges known to be affected.

Xerox FreeFlow Print Server 9all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:9
Xerox FreeFlow Print Server v9 for Solarisall versionscert_bundDEcpe:/a:xerox:freeflow_print_server:v9_for_solaris
Apple IOSunspecified → 14.8enisa_euvdEU
Apple macOSunspecified → 11.6enisa_euvdEU
Apple macOSunspecified → 2021-005enisa_euvdEU
Apple watchOSunspecified → 7.6enisa_euvdEU
Apple Inc. MacOS≤ 11.6fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2021-004fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2021-001fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2020-001fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2020fstec_bduRU
Apple Inc. OS X≤ 10.15.7-fstec_bduRU
Apple Inc. OS X≤ 10.15.7fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2021-003fstec_bduRU
Apple Inc. OS X≤ 10.15.7security_update_2021-002fstec_bduRU
Apple Inc. OS X10.15 → 10.15.7fstec_bduRU
Apple Inc. iOS≤ 14.8fstec_bduRU
Apple Inc. iPadOS≤ 14.8fstec_bduRU
Apple Inc. watchOS≤ 7.6.2fstec_bduRU
ООО "Открытая мобильная платформа" ОС Аврора≤ 5.1.4fstec_bduRU

showing 20 of 29

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1424Xerox FreeFlow Print Server für Solaris: Mehrere SchwachstellenDeutsch2023-06-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2021-08-24modified 2026-06-17

related (4,633)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2025-48595US	—OT critical	1.95% (80th)	KEV	2026-06-01
In multiple locations, there is a possible way to achieve code execution due to an integer overflow. This could lead to local escalation of privilege with no additional execution p…
CVE-2026-21385US	—OT critical	1.29% (70th)	KEV	2026-03-02
Memory corruption while using alignments for memory allocation.
CVE-2025-24985US	—OT critical	3.89% (90th)	KEV	2025-03-11
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
CVE-2024-38080US	—OT critical	7.12% (94th)	KEV	2024-07-09
Windows Hyper-V Elevation of Privilege Vulnerability
CVE-2023-33107US	high7.8OT critical	0.74% (54th)	KEV	2023-12-05
Memory corruption in Graphics Linux while assigning shared virtual memory region during IOCTL call.

+4628 more

references (57)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan