CVE-2026-80595

Out-of-bounds read via unchecked response lengths

Published Aug 28, 2026 · Updated Aug 28, 2026

Out-of-bounds read in the Linux IMS PCU driver allows physically proximate attackers to access stale kernel data through short device responses. The ims-pcu command-response path reads expected response fields without comparing the returned byte count with each structure size. Reachability requires a connected IMS PCU device that returns a truncated response; published material establishes out-of-bounds or stale-data reads.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Linux IMS PCU driver allows physically proximate attackers to access stale kernel data through short device responses. The ims-pcu command-response path reads expected response fields without comparing the returned byte count with each structure size. Reachability requires a connected IMS PCU device that returns a truncated response; published material establishes out-of-bounds or stale-data reads.

The record

CVE
CVE-2026-80595
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.10
  2. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <3e0e8d7f8139a9496e389e7372e3f8b57b3e4e3e
  3. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <48c9d92fd4ee3a8f5d2cb46c802a0eff8e67c79c
  4. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <89cf4d18ff87efa5c47ba38de36aea5c03f98b05
  5. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <bbafb75cd9da50d86335cbd98b8b3492bb5e42a6
  6. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <dc9fdb538ce5b7f32540991f4a25ab63fab7ba07
  7. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <f28c5cabb2df09ad1fcfb7cdb2b3ed2f690d81f0
  8. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <f3c63aecca90be42b66cdc66de7c4a6104104d17
  9. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <f7f5afeed31baaca0b027c2d46a25ee86fb4c9da

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=628329d52474323938a03826941e166bc7c8eff4 <3e0e8d7f8139a9496e389e7372e3f8b57b3e4e3e; version=628329d52474323938a03826941e166bc7c8eff4 <48c9d92fd4ee3a8f5d2cb46c802a0eff8e67c79c; version=628329d52474323938a03826941e166bc7c8eff4 <89cf4d18ff87efa5c47ba38de36aea5c03f98b05; version=628329d52474323938a03826941e166bc7c8eff4 <bbafb75cd9da50d86335cbd98b8b3492bb5e42a6; version=628329d52474323938a03826941e166bc7c8eff4 <dc9fdb538ce5b7f32540991f4a25ab63fab7ba07; version=628329d52474323938a03826941e166bc7c8eff4 <f28c5cabb2df09ad1fcfb7cdb2b3ed2f690d81f0; version=628329d52474323938a03826941e166bc7c8eff4 <f3c63aecca90be42b66cdc66de7c4a6104104d17; version=628329d52474323938a03826941e166bc7c8eff4 <f7f5afeed31baaca0b027c2d46a25ee86fb4c9da

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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