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NVD / CVE Program· CNA Linux

CVE-2026-93061: gpu: host1x: Avoid stack over-read in debug output helpers

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 41517c46002afd717f0f2d0975c740dd610f87fe, 4f9f0afdbdf513a49065207ff6b7e1d15051175a, 819dd96a6571f2b12496b080e5187ba3fa897232.

Low priority for now. Upgrade to Linux Linux 41517c46002afd717f0f2d0975c740dd610f87fe, 4f9f0afdbdf513a49065207ff6b7e1d15051175a, 819dd96a6571f2b12496b080e5187ba3fa897232 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Avoid stack over-read in debug output helpers host1x_debug_output() and host1x_debug_cont() used vsnprintf(), which returns the length the formatted string would have reached with an unbounded buffer. That return value was passed straight to o->fn as the number of bytes to emit. This could cause a read past end of the output buffer if a call to host1x_debug_* produced a string longer than 256 bytes. This only affected the debugfs files as the printk debug sink ignores the number of bytes. In practice, this is very unlikely to occur. Fix by switching to vscnprintf(), which returns the number of bytes actually written.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.10affected
    • 6236451d83a720072053855fa63d51934024a707 and later · before d7a560dc912756fd8b39b28b10818d931e863d2daffected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before 41517c46002afd717f0f2d0975c740dd610f87feaffected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before ebab3a25a0403bcbc0c40ef77d69d23270e45547affected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before 4f9f0afdbdf513a49065207ff6b7e1d15051175aaffected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before 819dd96a6571f2b12496b080e5187ba3fa897232affected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before 9ad7a6ccc7b839247663d57d3dbb4481dec492deaffected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before b00290d1dc23a5ef9a0d3103aad1fe2274e86569affected · git
    • 6236451d83a720072053855fa63d51934024a707 and later · before bc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6affected · git
    • before 3.10not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-93059Sep 17, 2026 · drm/msm: Fix task_struct reference leak in recover_worker
    0Monitor
  • ← EarlierCVE-2026-93060Sep 17, 2026 · drm/msm/adreno: fix use after free on error path in a6xx_gpu_init()
    0Monitor
  • Later →CVE-2026-93062Sep 17, 2026 · wifi: iwlwifi: guard against division by zero in iwl_dbg_tlv_alloc_fragments
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux41517c46002afd717f0f2d0975c740dd610f87feVendor (CNA)
Linux Linux4f9f0afdbdf513a49065207ff6b7e1d15051175aVendor (CNA)
Linux Linux819dd96a6571f2b12496b080e5187ba3fa897232Vendor (CNA)
Linux Linux9ad7a6ccc7b839247663d57d3dbb4481dec492deVendor (CNA)
Linux Linuxb00290d1dc23a5ef9a0d3103aad1fe2274e86569Vendor (CNA)
Linux Linuxbc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6Vendor (CNA)
Linux Linuxd7a560dc912756fd8b39b28b10818d931e863d2dVendor (CNA)
Linux Linuxebab3a25a0403bcbc0c40ef77d69d23270e45547Vendor (CNA)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records