CVE-2023-31555Public exploitNetwork attack vector

Crash via invalid delayed-load flag

Published May 10, 2023 · Updated Jan 27, 2025

Improper memory access in PoDoFo podofoinfo 0.10.0 allows context-dependent attackers to crash the tool via a crafted PDF file. During parsing, PdfObject::DelayedLoad reads m_IsDelayedLoadDone as 0x31 instead of a valid Boolean, and a later call from getString triggers a segmentation fault. Exploitation requires the file to be opened or processed, and the documented consequence is a crash with no confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper memory access in PoDoFo podofoinfo 0.10.0 allows context-dependent attackers to crash the tool via a crafted PDF file. During parsing, PdfObject::DelayedLoad reads m_IsDelayedLoadDone as 0x31 instead of a valid Boolean, and a later call from getString triggers a segmentation fault. Exploitation requires the file to be opened or processed, and the documented consequence is a crash with no confidentiality or integrity impact.

The record

CVE
CVE-2023-31555
Published
May 10, 2023
Updated
Jan 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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