Public proof of concept

CVE-2019-8900

A public proof of concept exists; no exploitation attested.

Published2025-02-21
WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability in the SecureROM of some Apple devices can be exploited by an unauthenticated local attacker to execute arbitrary code upon booting those devices. This vulnerability allows arbitrary code to be executed on the device. Exploiting the vulnerability requires physical access to the device: the device must be plugged in to a computer upon booting, and it must be put into Device Firmware Update (DFU) mode. The exploit is not persistent; rebooting the device overrides any changes to the device's software that were made during an exploited session on the device. Additionally, unless an attacker has access to the device's unlock PIN or fingerprint, an attacker cannot gain access to information protected by Apple's Secure Enclave or Touch ID features.

Timeline

dates in UTC

2025-02-2122:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-8900?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-8900?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apple secureromversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedWeeabo-Inc/a9pwn

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2025-02-22
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.16.82025-02-22
CISA-ADPweakness (CWE)CWE-942025-02-22
FIRST EPSSEPSS score68.6 %read 2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2025-02-21
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2019-8900?

Is CVE-2019-8900 actively exploited?

Active exploitation of CVE-2019-8900 has not been confirmed. Its EPSS score was 68.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-8900?

CVE-2019-8900 has a CVSS v3 base score of 6.8 (MEDIUM severity), with vector string CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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