CVE-2019-5478

A weakness was found in Encrypt Only boot mode in Zynq UltraScale+ devices. This could lead to an adversary being able to modify the control fields of the boot image leading to an incorrect secure boot behavior.

Published: 2019-09-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-5478 is rated Low Risk (27.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.25%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-5478

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.04% 0.25% +0.21%
2 2023-03-07 0.89% 0.04% -0.84%
3 2022-04-01 — 0.89% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-5478

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2019-5478

Affected software / configurations for CVE-2019-5478

Vendor Product Version Raw CPE
amd zu11eg_firmware — cpe:2.3:o:amd:zu11eg_firmware:-:*:*:*:*:*:*:*
amd zu15eg_firmware — cpe:2.3:o:amd:zu15eg_firmware:-:*:*:*:*:*:*:*
amd zu17eg_firmware — cpe:2.3:o:amd:zu17eg_firmware:-:*:*:*:*:*:*:*
amd zu19eg_firmware — cpe:2.3:o:amd:zu19eg_firmware:-:*:*:*:*:*:*:*
amd zu1cg_firmware — cpe:2.3:o:amd:zu1cg_firmware:-:*:*:*:*:*:*:*
amd zu1eg_firmware — cpe:2.3:o:amd:zu1eg_firmware:-:*:*:*:*:*:*:*
amd zu21dr_firmware — cpe:2.3:o:amd:zu21dr_firmware:-:*:*:*:*:*:*:*
amd zu25dr_firmware — cpe:2.3:o:amd:zu25dr_firmware:-:*:*:*:*:*:*:*
amd zu27dr_firmware — cpe:2.3:o:amd:zu27dr_firmware:-:*:*:*:*:*:*:*
amd zu28dr_firmware — cpe:2.3:o:amd:zu28dr_firmware:-:*:*:*:*:*:*:*
amd zu29dr_firmware — cpe:2.3:o:amd:zu29dr_firmware:-:*:*:*:*:*:*:*
amd zu2cg_firmware — cpe:2.3:o:amd:zu2cg_firmware:-:*:*:*:*:*:*:*
amd zu2eg_firmware — cpe:2.3:o:amd:zu2eg_firmware:-:*:*:*:*:*:*:*
amd zu39dr_firmware — cpe:2.3:o:amd:zu39dr_firmware:-:*:*:*:*:*:*:*
amd zu3cg_firmware — cpe:2.3:o:amd:zu3cg_firmware:-:*:*:*:*:*:*:*
amd zu3eg_firmware — cpe:2.3:o:amd:zu3eg_firmware:-:*:*:*:*:*:*:*
amd zu3tcg_firmware — cpe:2.3:o:amd:zu3tcg_firmware:-:*:*:*:*:*:*:*
amd zu3teg_firmware — cpe:2.3:o:amd:zu3teg_firmware:-:*:*:*:*:*:*:*
amd zu42dr_firmware — cpe:2.3:o:amd:zu42dr_firmware:-:*:*:*:*:*:*:*
amd zu43dr_firmware — cpe:2.3:o:amd:zu43dr_firmware:-:*:*:*:*:*:*:*
amd zu46dr_firmware — cpe:2.3:o:amd:zu46dr_firmware:-:*:*:*:*:*:*:*
amd zu47dr_firmware — cpe:2.3:o:amd:zu47dr_firmware:-:*:*:*:*:*:*:*
amd zu48dr_firmware — cpe:2.3:o:amd:zu48dr_firmware:-:*:*:*:*:*:*:*
amd zu49dr_firmware — cpe:2.3:o:amd:zu49dr_firmware:-:*:*:*:*:*:*:*
amd zu4cg_firmware — cpe:2.3:o:amd:zu4cg_firmware:-:*:*:*:*:*:*:*
amd zu4eg_firmware — cpe:2.3:o:amd:zu4eg_firmware:-:*:*:*:*:*:*:*
amd zu4ev_firmware — cpe:2.3:o:amd:zu4ev_firmware:-:*:*:*:*:*:*:*
amd zu5cg_firmware — cpe:2.3:o:amd:zu5cg_firmware:-:*:*:*:*:*:*:*
amd zu5eg_firmware — cpe:2.3:o:amd:zu5eg_firmware:-:*:*:*:*:*:*:*
amd zu5ev_firmware — cpe:2.3:o:amd:zu5ev_firmware:-:*:*:*:*:*:*:*
amd zu63dr_firmware — cpe:2.3:o:amd:zu63dr_firmware:-:*:*:*:*:*:*:*
amd zu64dr_firmware — cpe:2.3:o:amd:zu64dr_firmware:-:*:*:*:*:*:*:*
amd zu65dr_firmware — cpe:2.3:o:amd:zu65dr_firmware:-:*:*:*:*:*:*:*
amd zu67dr_firmware — cpe:2.3:o:amd:zu67dr_firmware:-:*:*:*:*:*:*:*
amd zu6cg_firmware — cpe:2.3:o:amd:zu6cg_firmware:-:*:*:*:*:*:*:*
amd zu6eg_firmware — cpe:2.3:o:amd:zu6eg_firmware:-:*:*:*:*:*:*:*
amd zu7cg_firmware — cpe:2.3:o:amd:zu7cg_firmware:-:*:*:*:*:*:*:*
amd zu7eg_firmware — cpe:2.3:o:amd:zu7eg_firmware:-:*:*:*:*:*:*:*
amd zu7ev_firmware — cpe:2.3:o:amd:zu7ev_firmware:-:*:*:*:*:*:*:*
amd zu9cg_firmware — cpe:2.3:o:amd:zu9cg_firmware:-:*:*:*:*:*:*:*
amd zu9eg_firmware — cpe:2.3:o:amd:zu9eg_firmware:-:*:*:*:*:*:*:*

References for CVE-2019-5478

cvelogic Threat Intelligence