CVE-2022-48554

Crash via unterminated string scan in file_copystr

Published Aug 22, 2023 · Updated Aug 3, 2024

Stack-based buffer over-read in File before 5.43 allows context-dependent attackers to crash the utility through crafted input. file_copystr passes a potentially non-NUL-terminated source string to strlcpy, which scans beyond the intended source width while seeking a terminator. A user must invoke File or a libmagic consumer on the input; the published assessment limits the demonstrated consequence to a crash.

CVSS severity5.5
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer over-read in File before 5.43 allows context-dependent attackers to crash the utility through crafted input. file_copystr passes a potentially non-NUL-terminated source string to strlcpy, which scans beyond the intended source width while seeking a terminator. A user must invoke File or a libmagic consumer on the input; the published assessment limits the demonstrated consequence to a crash.

The record

CVE
CVE-2022-48554
Published
Aug 22, 2023
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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