CVE-2026-72077

Local service interruption via firmware object leak

Published Aug 15, 2026 · Updated Aug 15, 2026

Resource exhaustion in the ims-pcu input driver in Linux allows local users to interrupt service through failed asynchronous firmware updates. The asynchronous update path in drivers/input/misc/ims-pcu.c returns after firmware validation fails without releasing the request's firmware object. Low-privileged local access to the device firmware-update path is required; repeated failures deplete kernel memory and interrupt availability.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in the ims-pcu input driver in Linux allows local users to interrupt service through failed asynchronous firmware updates. The asynchronous update path in drivers/input/misc/ims-pcu.c returns after firmware validation fails without releasing the request's firmware object. Low-privileged local access to the device firmware-update path is required; repeated failures deplete kernel memory and interrupt availability.

The record

CVE
CVE-2026-72077
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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 <1f7bdfbe791aacad77db87f044e78ef60a93ae0d
  3. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <47a9889a9325b87698b6d6eaf3187a9af6e4773d
  4. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <99c428d7ef644d3e394f3072f905040c16dab18d
  5. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <a5dd47ea3904dedb1ae7a5fe0e6b44a458f0c5ec
  6. Affected versionversion=628329d52474323938a03826941e166bc7c8eff4 <d48795b5cd6828d36b707e8d62fc9e5c90e004ab

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=628329d52474323938a03826941e166bc7c8eff4 <1f7bdfbe791aacad77db87f044e78ef60a93ae0d; version=628329d52474323938a03826941e166bc7c8eff4 <47a9889a9325b87698b6d6eaf3187a9af6e4773d; version=628329d52474323938a03826941e166bc7c8eff4 <99c428d7ef644d3e394f3072f905040c16dab18d; version=628329d52474323938a03826941e166bc7c8eff4 <a5dd47ea3904dedb1ae7a5fe0e6b44a458f0c5ec; version=628329d52474323938a03826941e166bc7c8eff4 <d48795b5cd6828d36b707e8d62fc9e5c90e004ab

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
T1499Endpoint Denial of Service

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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