Cyber Resilience

CVE-2024-22532

Memory Safety in Xnview Nconvert 7.136

Public PoCMemory Safety
Published
28 February 2024
Modified
17 June 2026
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.011 63th percentile
Risk Priority 57 floored blend · peak EPSS

Summary

CVE-2024-22532 is a medium-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Xnview Nconvert. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 37% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-22532 is a heap-based buffer overflow vulnerability, tracked as CWE-122, that affects XNSoft NConvert version 7.163 on Windows x86. The flaw resides in the application's handling of XWD image files and carries a CVSS 3.1 score of 6.5, reflecting a network-reachable vector that requires low attack complexity, no authentication, and user interaction to trigger a denial-of-service condition with high availability impact.

An unauthenticated attacker can exploit the issue by supplying a specially crafted XWD file that the victim opens in NConvert. Successful exploitation results in a crash that terminates the application, thereby denying service to legitimate users while leaving confidentiality and integrity unaffected.

The two reference URLs point to the same GitHub repository containing proof-of-concept material; no vendor advisory, patch information, or mitigation guidance is provided in the available references. The associated EPSS score has remained low, moving only from 0.0512 to a peak of 0.0556.

EU & UK References

Vulnerability Data

Buffer Overflow vulnerability in XNSoft NConvert 7.163 (for Windows x86) allows attackers to cause a denial of service via crafted xwd file.

CWE(s)
CWE-122

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-30006Same product: Xnview Nconvert
CVE-2023-43250Same product: Xnview Nconvert
CVE-2026-30007Same product: Xnview Nconvert
CVE-2023-43252Same product: Xnview Nconvert
CVE-2023-43251Same product: Xnview Nconvert
CVE-2023-46587Same vendor: Xnview
CVE-2024-11950Same vendor: Xnview
CVE-2023-52174Same vendor: Xnview
CVE-2023-52173Same vendor: Xnview
CVE-2024-29982Shared CWE-122

Affected Assets

xnview
nconvert
7.136

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.4.1

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation (including fuzzing and memory-error detectors) can discover heap overflows after they have been coded.

SI-10 Information Input Validation good match

Input validation enforces bounds checking on data written to heap buffers, directly stopping the overflow condition from being introduced.

SA-8 Security and Privacy Engineering Principles partial match

Security engineering principles require use of memory-safe constructs and bounds-checked allocation routines that avoid introducing heap overflows.

SI-16 Memory Protection partial match

Memory-protection mechanisms limit the ability of a heap overflow to execute attacker-controlled code or corrupt adjacent structures.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 full match
prevents

Secure-development practices directly require bounds checking and safe memory handling that prevent heap overflows.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover heap-overflow flaws but does not prevent their introduction in code.

PR.PS-02 partial match
prevents

Timely patching removes known heap-overflow instances after they exist.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect heap overflows before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates practices that reduce the likelihood of introducing heap overflows.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify bounds-checking and safe memory APIs that mitigate heap overflows.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture and engineering principles include memory-safety and input-validation controls that address heap overflows.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly prescribe techniques (safe functions, bounds checks) that prevent heap-based buffer overflows.

A.8.32 Change management none match
none

Change management ensures controlled deployment of fixes for discovered heap-overflow vulnerabilities.

References