CVE-2017-18306: Information disclosure due to uninitialized variable.

Routine

HIGH 8.4MITIGATEMITIGATEMITIGATE

CVE-2017-18306 is a high-severity flaw (CVSS 8.4) affecting sd 450 firmware, sd 625 firmware, sd 820 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Information disclosure due to uninitialized variable.

Why this priority

High severity

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

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.1% (top 98%)
CISA exploited list	No
Weakness	CWE-200, CWE-908
Published	2024-11-26
Last modified	2026-06-17

Publisher (CNA): Qualcomm, Inc. · Vendor: qualcomm

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

Am I affected?

Timeline

2024-11-26 14:15 UTCPublished CVE record published
2026-06-17 01:12 UTCUpdated Record last modified

qualcomm sd 450 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

qualcomm sd 625 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

qualcomm sd 820 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

qualcomm sd 820a firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

qualcomm sd 835 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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.

qualcomm sd 845 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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-2017-18306?

sd 450 firmware: mitigate or apply the listed mitigation; sd 625 firmware: mitigate or apply the listed mitigation; sd 820 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-18306 being exploited?

CVE-2017-18306 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-2017-18306 affect?

CVE-2017-18306 affects sd 450 firmware, sd 625 firmware, sd 820 firmware. Severity is high (CVSS 8.4). Information disclosure due to uninitialized variable.

How urgent is CVE-2017-18306?

Priority 30/100. High severity

Software pages

Qualcomm vulnerabilities

Related CVEs

CVE-2017-18307 HIGH 8.4 MITIGATE MITIGATE Information disclosure possible while audio playback.
CVE-2017-17772 CRITICAL 9.8 MITIGATE MITIGATE In multiple functions that process 802.11 frames, out-of-bounds reads can occur due to insufficient validation

References

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