CVE-2023-33733: Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

Q: How do I fix CVE-2023-33733?

reportlab: upgrade to newer than 3.6.12. Exact commands for each OS are on this page.

Q: Is CVE-2023-33733 being exploited?

CVE-2023-33733 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-33733 affect?

CVE-2023-33733 affects reportlab. Severity is high (CVSS 7.8). Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

Q: How urgent is CVE-2023-33733?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2023-33733 is a high-severity flaw (CVSS 7.8) affecting reportlab. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-94
Published	2023-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: reportlab

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

Am I affected?

Timeline

2023-06-05 16:15 UTCPublished CVE record published
2026-06-17 06:02 UTCUpdated Record last modified

reportlab reportlab UPGRADE

Affected: <= 3.6.12

Fixed in: newer than 3.6.12

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.6.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade reportlab

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade reportlab

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2023-33733?

reportlab: upgrade to newer than 3.6.12. Exact commands for each OS are on this page.

Is CVE-2023-33733 being exploited?

CVE-2023-33733 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-2023-33733 affect?

CVE-2023-33733 affects reportlab. Severity is high (CVSS 7.8). Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

How urgent is CVE-2023-33733?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2019-19450 CRITICAL 9.8 UPGRADE MITIGATE paraparser in ReportLab before 3.5.31 allows remote code execution because start_unichar in paraparser.py eval

References

← Back to latest CVEs