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CVE-2026-31792 is a vulnerability in the iccDEV library, used for handling ICC color management profiles. The issue resides in the CIccTagXmlStruct::ParseTag() function, which parses XML tags within ICC profiles. When processing a specially crafted ICC profile, this function dereferences a pointer that has not been properly initialized, leading to a null pointer dereference. This causes a segmentation fault, resulting in a denial of service (application crash). All versions prior to 2.3.1.5 are affected. An attacker can exploit this by tricking a user or system into opening a malicious ICC file. The root cause is insufficient pointer validation before use. The fix involves adding null checks in the parsing logic. The vulnerability was reported via GitHub and patched in version 2.3.1.5. The NVD published this CVE on March 10, 2026. The attack complexity is low, requiring no privileges. The impact is limited to availability, with no data breach or code execution. The vulnerability is triggered when the library attempts to parse malformed XML tags. Users must upgrade to the fixed version. The patch was released on March 13, 2026. This highlights the need for input validation in C/C++ codebases.
dailycve form:
Platform: iccDEV
Version: Prior to 2.3.1.5
Vulnerability: Null pointer dereference
Severity: Medium
date: 03/10/2026
Prediction: Patched in 2.3.1.5
What Undercode Say:
Showing bash commands and codes related to the blog
Check installed iccDEV version
pkg-config --modversion iccdev
or
iccdev-config --version
Upgrade to patched version via apt (if available)
sudo apt update && sudo apt install iccdev=2.3.1.5
Compile from source
git clone https://github.com/iccDEV/iccdev.git
cd iccdev
git checkout v2.3.1.5
./configure
make
sudo make install
Python test script (hypothetical binding)
python3 -c "
import iccdev
try:
iccdev.load_profile('malicious.icc')
except Exception as e:
print('Patched or error:', e)
"
how Exploit:
An attacker crafts a malicious ICC profile containing a malformed XML tag that triggers a null pointer dereference in CIccTagXmlStruct::ParseTag(). When a vulnerable iccDEV version processes this file, the null dereference causes a segmentation fault, crashing the application. The crafted file can be delivered via email, upload, or any vector where the target application opens ICC profiles. Exploitation requires no authentication and has low complexity, making it a reliable denial-of-service method.
Protection from this CVE
Upgrade iccDEV to version 2.3.1.5 or later, which includes proper null checks in the parsing function. Avoid opening ICC files from untrusted sources. Implement file validation to detect malformed profiles. If immediate upgrade is not possible, sandbox applications using iccDEV to limit crash impact. Apply the official patch from the repository.
Impact
Denial of service via application crash, leading to disruption of services relying on iccDEV. For web applications, malicious uploads can repeatedly crash servers. For desktop tools, it causes unexpected termination. No confidentiality or integrity impact. Severity is medium, but for critical systems, repeated exploitation can be significant.
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Sources:
Reported By: nvd.nist.gov
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