Page generated: 11 Nov 2026, 10:46 UTC
← Dashboard

CVE-2021-31010

A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was awar…

Read full description
A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..
CVSS 7.5 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.1/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.5: +1.12
  • Fresh EPSS: 3.67%: +0.02

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 3 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Bitsight
Press · 13 Jan 2023, 15:27 · 2023 Apple & iOS Vulnerabilities from CISA: Data - Bitsight
The Hacker News
Press · 29 Aug 2022, 07:00 · CISA Adds 10 New Known Actively Exploited Vulnerabilities to its Catalog - The Hacker News
SecurityWeek
Press · 26 Aug 2022, 07:00 · CISA: Vulnerability in ​​Delta Electronics ICS Software Exploited in Attacks - SecurityWeek

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.1 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.5; EPSS 3.7%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:26.907878+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
24 Aug 2021, 18:51
Added to the CISA KEV catalog
25 Aug 2022, 00:00
First press mention
26 Aug 2022, 07:00
Latest press mention
13 Jan 2023, 15:27
Score calculated
05 Nov 2026, 13:58