CVE-2022-45332Public exploit

Process crash via fixed-length section-name copy

Published Nov 30, 2022 · Updated Apr 24, 2025

Heap buffer overflow in LibreDWG 0.12.4.4643 allows context-dependent attackers to crash DWG-processing applications via a crafted pre-R13 file. The decode_preR13_section_hdr routine uses strncpy to copy 63 bytes while parsing the section header, producing an out-of-bounds heap write. A user or consuming application must process the file; the published proof demonstrates process termination but not code execution.

CVSS severity7.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in LibreDWG 0.12.4.4643 allows context-dependent attackers to crash DWG-processing applications via a crafted pre-R13 file. The decode_preR13_section_hdr routine uses strncpy to copy 63 bytes while parsing the section header, producing an out-of-bounds heap write. A user or consuming application must process the file; the published proof demonstrates process termination but not code execution.

The record

CVE
CVE-2022-45332
Published
Nov 30, 2022
Updated
Apr 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 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?

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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

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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