CVE-2023-44452: Linux Mint Xreader CBT File Parsing Argument Injection Remote Code Execution Vulnerability

This month

HIGH 7.8WATCHLISTDOWNGRADE

CVE-2023-44452 is a high-severity flaw (CVSS 7.8) affecting xreader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Linux Mint Xreader CBT File Parsing Argument Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Mint Xreader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CBT files. The issue results from the lack of proper validat

Why this priority

High severity
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-88
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: linuxmint

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 03:16 UTCPublished CVE record published
2026-06-17 06:27 UTCUpdated Record last modified

linuxmint xreader DOWNGRADE

Affected: 3.8.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.8.2

1. Check installed version

apt-cache policy xreader || rpm -q xreader || xreader --version

2. No fixed release: DOWNGRADE to a release before 3.8.2 (Debian / Ubuntu)

apt-cache madison xreader sudo apt install xreader=<VERSION_BEFORE_3.8.2> sudo apt-mark hold xreader

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xreader sudo dnf downgrade xreader-<VERSION_BEFORE_3.8.2> sudo dnf versionlock add xreader

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-44452?

xreader: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-44452 being exploited?

CVE-2023-44452 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-44452 affect?

CVE-2023-44452 affects xreader. Severity is high (CVSS 7.8). Linux Mint Xreader CBT File Parsing Argument Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Mint Xreader. User interaction is required t

How urgent is CVE-2023-44452?

Priority 50/100. High severity; On your watchlist

Related CVEs

CVE-2023-44451 HIGH 7.8 DOWNGRADE Linux Mint Xreader EPUB File Parsing Directory Traversal Remote Code Execution Vulnerability

References

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