CVE-2021-30860

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 76%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.5%
KEV
⚠ Exploited

Published

August 24, 2021

Last Modified

October 27, 2025

Advisory Details (10)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Poppler: Arbitrary Code Execution (GLSA 202209-21) — Gentoo security

https://security.gentoo.org/glsa/202209-21
generic

oss-security - JBIG2 integer overflow fixed in Xpdf 4.04, Poppler 22.09.0

http://www.openwall.com/lists/oss-security/2022/09/02/11
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-23-1 iOS 12.5.5

http://seclists.org/fulldisclosure/2021/Sep/50
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina

http://seclists.org/fulldisclosure/2021/Sep/40
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6

http://seclists.org/fulldisclosure/2021/Sep/39
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8

http://seclists.org/fulldisclosure/2021/Sep/38
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina

http://seclists.org/fulldisclosure/2021/Sep/28
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-13-3 macOS Big Sur 11.6

http://seclists.org/fulldisclosure/2021/Sep/27
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-13-2 watchOS 7.6.2

http://seclists.org/fulldisclosure/2021/Sep/26
generic🔴 Active Exploitation

Full Disclosure: APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8

http://seclists.org/fulldisclosure/2021/Sep/25

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 02:00 UTCEG score recompute
  3. 2026-07-22 23:53 UTCEG score recompute
  4. 2026-07-22 22:47 UTCEG score recompute
  5. 2026-07-22 19:40 UTCCISA KEV update
  6. 2026-07-22 15:55 UTCEG score recompute
  7. 2026-07-22 14:06 UTCEPSS rescore
  8. 2026-07-22 14:06 UTCEPSS rescore
  9. 2026-07-21 18:38 UTCEG score recompute
  10. 2026-07-21 15:22 UTCEPSS rescore
  11. 2026-07-21 15:22 UTCEPSS rescore
  12. 2026-07-21 14:37 UTCCISA KEV update
  13. 2026-07-20 18:47 UTCEG score recompute
  14. 2026-07-20 17:05 UTCEPSS rescore
  15. 2026-07-16 17:04 UTCCISA KEV update
  16. 2026-07-15 16:55 UTCEPSS rescore
  17. 2026-07-15 16:55 UTCEPSS rescore
  18. 2026-07-15 16:49 UTCCISA KEV update
  19. 2026-07-15 15:04 UTCCISA KEV update
  20. 2026-07-14 18:05 UTCCISA KEV update
  21. 2026-07-13 17:07 UTCCISA KEV update
  22. 2026-07-13 06:10 UTCEPSS rescore
  23. 2026-07-12 05:44 UTCEPSS rescore
  24. 2026-07-12 05:44 UTCEPSS rescore
  25. 2026-07-10 17:52 UTCCISA KEV update
Show 57 more
  1. 2026-07-09 19:07 UTCEPSS rescore
  2. 2026-07-07 19:01 UTCCISA KEV update
  3. 2026-07-07 17:16 UTCCISA KEV update
  4. 2026-07-06 16:25 UTCEPSS rescore
  5. 2026-07-06 16:25 UTCEPSS rescore
  6. 2026-07-02 16:57 UTCEPSS rescore
  7. 2026-07-01 19:16 UTCCISA KEV update
  8. 2026-06-30 23:20 UTCEPSS rescore
  9. 2026-06-30 23:20 UTCEPSS rescore
  10. 2026-06-29 19:12 UTCCISA KEV update
  11. 2026-06-28 04:54 UTCEPSS rescore
  12. 2026-06-28 04:54 UTCEPSS rescore
  13. 2026-06-25 19:15 UTCCISA KEV update
  14. 2026-06-25 13:48 UTCEPSS rescore
  15. 2026-06-25 13:48 UTCEPSS rescore
  16. 2026-06-24 14:03 UTCEPSS rescore
  17. 2026-06-24 14:03 UTCEPSS rescore
  18. 2026-06-23 21:31 UTCEPSS rescore
  19. 2026-06-23 21:31 UTCEPSS rescore
  20. 2026-06-23 17:44 UTCCISA KEV update
  21. 2026-06-21 01:58 UTCEPSS rescore
  22. 2026-06-21 01:58 UTCEPSS rescore
  23. 2026-06-18 16:13 UTCCISA KEV update
  24. 2026-06-17 17:51 UTCEPSS rescore
  25. 2026-06-16 19:33 UTCCISA KEV update
  26. 2026-06-15 19:33 UTCCISA KEV update
  27. 2026-06-15 17:46 UTCEPSS rescore
  28. 2026-06-14 23:15 UTCEPSS rescore
  29. 2026-06-13 22:58 UTCEPSS rescore
  30. 2026-06-13 22:58 UTCEPSS rescore
  31. 2026-06-12 23:10 UTCEPSS rescore
  32. 2026-06-12 17:35 UTCCISA KEV update
  33. 2026-06-11 19:10 UTCCISA KEV update
  34. 2026-06-11 13:58 UTCEPSS rescore
  35. 2026-06-10 22:16 UTCEPSS rescore
  36. 2026-06-09 18:42 UTCCISA KEV update
  37. 2026-06-09 17:12 UTCCISA KEV update
  38. 2026-06-08 19:16 UTCCISA KEV update
  39. 2026-06-08 17:26 UTCCISA KEV update
  40. 2026-06-08 14:15 UTCEPSS rescore
  41. 2026-06-07 15:23 UTCEPSS rescore
  42. 2026-06-07 15:23 UTCEPSS rescore
  43. 2026-06-05 22:43 UTCCISA KEV update
  44. 2026-06-05 06:09 UTCEPSS rescore
  45. 2026-06-05 06:09 UTCEPSS rescore
  46. 2026-06-03 19:09 UTCCISA KEV update
  47. 2026-06-02 18:32 UTCCISA KEV update
  48. 2026-06-01 20:42 UTCCISA KEV update
  49. 2026-06-01 13:50 UTCEPSS rescore
  50. 2026-06-01 13:50 UTCEPSS rescore
  51. 2026-05-31 23:56 UTCEG score recompute▲ 1.20
  52. 2026-05-31 00:15 UTCEPSS rescore
  53. 2026-05-29 22:20 UTCCISA KEV update
  54. 2026-05-29 13:42 UTCEPSS rescore
  55. 2026-05-27 20:35 UTCCISA KEV update
  56. 2026-05-26 19:13 UTCCISA KEV update
  57. 2026-05-26 11:35 UTCEG score recompute

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCjeffssh/CVE-2021-30860
    First seen Dec 25, 2021

    Collection of materials relating to FORCEDENTRY

    Open source ↗
  • GitHub PoCLevilutz/CVE-2021-30860
    First seen Sep 18, 2021

    Scan for evidence of CVE-2021-30860 (FORCEDENTRY) exploit

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2021-30860?
CVE-2021-30860 is a high vulnerability published on August 24, 2021. 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…
When was CVE-2021-30860 disclosed?
CVE-2021-30860 was first published in the National Vulnerability Database on August 24, 2021, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-30860 actively exploited?
Yes. CISA added CVE-2021-30860 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Apple Multiple Products. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-30860?
CVE-2021-30860 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2021-30860?
CVE-2021-30860 affects Apple Multiple Products. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2021-30860?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30860, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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