CVE-2018-20449

MEDIUMNVD 5.55.5—

5.5

The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading "callback=" lines in a debugfs file.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 20.9%
KEV: Not listed

Published

April 4, 2019

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://elixir.bootlin.com/linux/v4.14.90/source/drivers/dma/qcom/hidma_dbg.c#L92
cve@mitrehttps://security.netapp.com/advisory/ntap-20190502-0002/
cve@mitrehttps://www.mail-archive.com/debian-security-tracker%40lists.debian.org/msg03808.html
af854a3a-2127-422b-91ae-364da2661108https://elixir.bootlin.com/linux/v4.14.90/source/drivers/dma/qcom/hidma_dbg.c#L92
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190502-0002/
af854a3a-2127-422b-91ae-364da2661108https://www.mail-archive.com/debian-security-tracker%40lists.debian.org/msg03808.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:45 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-27 20:59 UTCEG score recompute
2026-05-27 20:59 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch

Frequently asked(5)

What is CVE-2018-20449?

CVE-2018-20449 is a medium vulnerability published on April 4, 2019. The hidmachanstats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading "callback=" lines in a debugfs file.

When was CVE-2018-20449 disclosed?

CVE-2018-20449 was first published in the National Vulnerability Database on April 4, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-20449 actively exploited?

CVE-2018-20449 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-20449?

CVE-2018-20449 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2018-20449?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20449, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2018-20449

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-20449?

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References (6)

Frequently asked(5)

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