CVE-2016-10319: In ARM Trusted Firmware 1.2 and 1.3, a malformed firmware update SMC can result in copying unexpectedly large

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MEDIUM 5.9REMOTEMITIGATE

CVE-2016-10319 is a medium-severity flaw (CVSS 5.9) affecting arm trusted firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In ARM Trusted Firmware 1.2 and 1.3, a malformed firmware update SMC can result in copying unexpectedly large data into secure memory because of integer overflows. This affects certain cases involving execution of both AArch64 Generic Trusted Firmware (TF) BL1 code and other firmware update code.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-190
Published	2017-04-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: arm trusted firmware project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-04-06 15:59 UTCPublished CVE record published
2026-06-17 00:39 UTCUpdated Record last modified

arm trusted firmware project arm trusted firmware MITIGATE

Affected: 1.2 · 1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-10319?

arm trusted firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-10319 being exploited?

CVE-2016-10319 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-10319 affect?

CVE-2016-10319 affects arm trusted firmware. Severity is medium (CVSS 5.9). In ARM Trusted Firmware 1.2 and 1.3, a malformed firmware update SMC can result in copying unexpectedly large data into secure memory because of integer overflows. This affects certain cases involving execution of both AArch64 Generic Trust

How urgent is CVE-2016-10319?

Priority 45/100. Remotely exploitable, no login, no user action

References

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