How severe is CVE-2019-5478?

CVE-2019-5478 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-5478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5478?

CVE-2019-5478 primarily affects Amd Zu11eg Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-5478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-5478 published?

CVE-2019-5478 was published on 2019-09-03 and last updated on 2026-06-17.

CVE-2019-5478

CVE-2019-5478 is a medium-severity vulnerability in Amd Zu11eg Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-345.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Amd Zu11eg Firmware
Published: 2019-09-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-5478?: CVE-2019-5478 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-5478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5478?: CVE-2019-5478 primarily affects Amd Zu11eg Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-5478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-5478 published?: CVE-2019-5478 was published on 2019-09-03 and last updated on 2026-06-17.

References

Affected products (41)

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

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