CVE-2022-23948Public exploit

Local secret disclosure via spoofed mount output

Published Sep 21, 2022 · Updated May 29, 2025

Information disclosure in Keylime before 6.3.0 allows local users to expose agent secrets by staging a crafted FUSE mount. The check_mounted() function in secure_mount.py splits human-readable mount output and mistakes an attacker-controlled fsname containing tmpfs on /var/lib/keylime/secure for the protected tmpfs mount. Exploitation requires local users to create the entry before the agent starts, after which sensitive data can remain outside the intended tmpfs protection.

CVSS severity7.5
High
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Keylime before 6.3.0 allows local users to expose agent secrets by staging a crafted FUSE mount. The check_mounted() function in secure_mount.py splits human-readable mount output and mistakes an attacker-controlled fsname containing tmpfs on /var/lib/keylime/secure for the protected tmpfs mount. Exploitation requires local users to create the entry before the agent starts, after which sensitive data can remain outside the intended tmpfs protection.

The record

CVE
CVE-2022-23948
Published
Sep 21, 2022
Updated
May 29, 2025
Vendor
Keylime
Product
Keylime
Classifications
CWE-200, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2022CVE publishedPublication date reported by the CVE source.
  2. May 29, 2025Record 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=keylime 6.3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Keylime · Keylimeversion=keylime 6.3.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

Public exploit references

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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