CVE-2023-41633

Name: CVE-2023-41633
Creator: NVD / NIST
Published: 2023-09-01T19:15:43.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2023-41633 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.21%

10.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Fossies	Catdoc	0.95

References

https://gist.github.com/rycbar77/3da455382f88cfb6d6798572f34378bdThird Party Advisory
https://rycbar77.github.io/2023/08/29/catdoc-0-95-nullptr-dereference/Broken Link
https://gist.github.com/rycbar77/3da455382f88cfb6d6798572f34378bdThird Party Advisory
https://rycbar77.github.io/2023/08/29/catdoc-0-95-nullptr-dereference/Broken Link

Timeline

Published: Sep 1, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-41633?

Catdoc v0.95 was discovered to contain a NULL pointer dereference via the component xls2csv at src/fileutil.c.

How severe is CVE-2023-41633?

CVE-2023-41633 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2023-41633?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-41633?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST