CVE Record
[ HIGH ]CVE-2021-1048
Android Kernel Use-After-Free Vulnerability
Android kernel contains a use-after-free vulnerability that allows for privilege escalation.
- Vendor
- Android
- Product
- Kernel
- CVSS
- 7.8
- EPSS (exploit probability)
- 1.1%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2021-1048 being exploited?
Yes. CISA added CVE-2021-1048 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 1.1% (scored October 15, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-21. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Android Kernel CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2024-36971 Android Kernel Remote Code Execution Vulnerability | [ HIGH ] | 7.8 | 2.7% | |
| CVE-2021-0920 Android Kernel Race Condition Vulnerability | [ MEDIUM ] | 6.4 | 0.9% | |
| CVE-2020-0041 Android Kernel Out-of-Bounds Write Vulnerability | [ HIGH ] | 7.8 | 3.1% | |
| CVE-2019-2215 Android Kernel Use-After-Free Vulnerability | [ HIGH ] | 7.8 | 72.1% |