Page generated: 11 Nov 2026, 09:16 UTC
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CVE-2021-1048

In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Andr…

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In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-204573007References: Upstream kernel
CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.2/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.8: +1.17
  • Fresh EPSS: 1.06%: +0.01

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

Sources: 13 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

The Hacker News
Press · 05 Dec 2025, 08:00 · Intellexa Leaks Reveal Zero-Days and Ads-Based Vector for Predator Spyware Delivery - The Hacker News
SecNews.gr
Press · 04 Dec 2025, 08:00 · Intellexa: Predator network survives despite sanctions – New data - SecNews.gr
Google Cloud
Press · 03 Dec 2025, 08:00 · Sanctioned but Still Spying: Intellexa’s Prolific Zero-Day Exploits Continue - Google Cloud
Bitsight
Press · 17 Sep 2024, 21:03 · Android Exploits & Vulnerabilities from CISA (Quick Read) - Bitsight
Ars Technica
Press · 26 May 2023, 07:00 · Inner workings revealed for “Predator,” the Android malware that exploited 5 0-days - Ars Technica
See all 13 source documents
Cisco Talos Blog
Press · 25 May 2023, 07:00 · Mercenary mayhem: A technical analysis of Intellexa's PREDATOR spyware - Cisco Talos Blog
The Register
Press · 24 May 2022, 07:00 · Predator spyware uses in Chrome, Android zero-day exploits - The Register
BleepingComputer
Press · 22 May 2022, 07:00 · Google: Predator spyware infected Android devices using zero-days - BleepingComputer
The Hacker News
Press · 20 May 2022, 07:00 · Cytrox's Predator Spyware Targeted Android Users with Zero-Day Exploits - The Hacker News
blog.google
Press · 19 May 2022, 07:00 · Protecting Android users from 0-Day attacks - blog.google
WeLiveSecurity
Press · 04 Nov 2021, 07:00 · Google squashes Android zero-day bug exploited in targeted attacks - WeLiveSecurity
BleepingComputer
Press · 02 Nov 2021, 07:00 · Android November patch fixes actively exploited kernel bug - BleepingComputer
9to5Google
Press · 01 Nov 2021, 07:00 · Android 12 November security patch rolling out to Google Pixel, factory images & OTAs live - 9to5Google

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 8.2 (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 7.8; EPSS 1.1%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, low 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 13:58:21.708024+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
01 Nov 2021, 07:00
Published
15 Dec 2021, 18:05
Added to the CISA KEV catalog
23 May 2022, 00:00
Latest press mention
05 Dec 2025, 08:00
Score calculated
05 Nov 2026, 13:58