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NVD / CVE Program· CNA Linux

CVE-2026-93177: drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup

Noroxi assessment

Priority: Monitor (action score 29/100)

  • 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: 0.16% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 06aef6dcc1d52da5112cbcde39c062e493247ab5, 206e478810d6af50b25d8da72e3af8d55a014365, 25dedc13ceb9b6109c79c92a726ca4ca017c9eaa; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 06aef6dcc1d52da5112cbcde39c062e493247ab5, 206e478810d6af50b25d8da72e3af8d55a014365, 25dedc13ceb9b6109c79c92a726ca4ca017c9eaa; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 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: drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup vddInd, vddciInd and mvddInd from VBIOS-parsed tables index into vddc, vddci and vddmem lookup tables without bounds checks across nine sites. Return -EINVAL when any index is out of range.

HighCVSS 7.3 · v3.1—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 5th percentile
CWE
—

Report tools

JSON

Action score

29

Monitor

Low priority for now.

CVSS
29 / 40 · 7.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-93177

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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

    • 4.12affected
    • f83a9991648bb4023a53104db699e99305890d51 and later · before 206e478810d6af50b25d8da72e3af8d55a014365affected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before 25dedc13ceb9b6109c79c92a726ca4ca017c9eaaaffected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before ae25c92d91f2cb90ede2b0eb0f58efa82ccc718baffected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before b349dcf061a6dc8c6cef9a10530331ef2ff66c72affected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before dfe89f1a0c7f40ef858b93881198f9728df956cfaffected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before 46d27e56dbd6345b9c7b62b67ec57407bf3bf29aaffected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before 06aef6dcc1d52da5112cbcde39c062e493247ab5affected · git
    • f83a9991648bb4023a53104db699e99305890d51 and later · before 6fa33f594e46e775a94097f71b486d7b006b6917affected · git
    • before 4.12not 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-2026-93175Sep 17, 2026 · drm/amd/display: Fix dangling pointer in CRTC reset function
    31Monitor
  • ← EarlierCVE-2026-93176Sep 17, 2026 · drm/amd/display: Fix dangling pointer in plane reset function
    28Monitor
  • Later →CVE-2026-93178Sep 17, 2026 · drm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup
    28Monitor

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 Linux06aef6dcc1d52da5112cbcde39c062e493247ab5Vendor (CNA)
Linux Linux206e478810d6af50b25d8da72e3af8d55a014365Vendor (CNA)
Linux Linux25dedc13ceb9b6109c79c92a726ca4ca017c9eaaVendor (CNA)
Linux Linux46d27e56dbd6345b9c7b62b67ec57407bf3bf29aVendor (CNA)
Linux Linux6fa33f594e46e775a94097f71b486d7b006b6917Vendor (CNA)
Linux Linuxae25c92d91f2cb90ede2b0eb0f58efa82ccc718bVendor (CNA)
Linux Linuxb349dcf061a6dc8c6cef9a10530331ef2ff66c72Vendor (CNA)
Linux Linuxdfe89f1a0c7f40ef858b93881198f9728df956cfVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
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

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

nvd-secondary

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