CVE-2022-33028Public exploit

Application crash via out-of-bounds object initialization

Published Jun 22, 2022 · Updated Aug 3, 2024

Heap buffer overflow in GNU LibreDWG 0.12.4.4608 allows context-dependent attackers to crash applications that process crafted DWG files. During pre-R13 decoding, dwg_add_object performs a 168-byte memset at the end of the heap object array allocated by decode_preR13_section, writing beyond the 43,136-byte allocation. Processing the file with dwg2dxf triggers an AddressSanitizer abort; the demonstrated consequence is a crash, and the upstream issue states that the report is not reproducible in the latest release.

CVSS severity7.8
High
EPSS probability0.75%
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 GNU LibreDWG 0.12.4.4608 allows context-dependent attackers to crash applications that process crafted DWG files. During pre-R13 decoding, dwg_add_object performs a 168-byte memset at the end of the heap object array allocated by decode_preR13_section, writing beyond the 43,136-byte allocation. Processing the file with dwg2dxf triggers an AddressSanitizer abort; the demonstrated consequence is a crash, and the upstream issue states that the report is not reproducible in the latest release.

The record

CVE
CVE-2022-33028
Published
Jun 22, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2022CVE 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002Malicious File

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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