CVE-2024-7788: Improper Digital Signature Invalidation vulnerability in Zip Repair Mode of The Document Foundation LibreOffi

Routine

HIGH 7.8UPGRADE

CVE-2024-7788 is a high-severity flaw (CVSS 7.8) affecting libreoffice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Digital Signature Invalidation vulnerability in Zip Repair Mode of The Document Foundation LibreOffice allows Signature forgery vulnerability in LibreOfficeThis issue affects LibreOffice: from 24.2 before < 24.2.5.

Why this priority

High severity

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	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-347
Published	2024-09-17
Last modified	2026-06-17

Publisher (CNA): Document Foundation, The · Vendor: libreoffice

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

Am I affected?

Timeline

2024-09-17 15:15 UTCPublished CVE record published
2026-06-17 08:20 UTCUpdated Record last modified

libreoffice libreoffice UPGRADE

Affected: >= 24.2.0 and < 24.2.5

Fixed in: 24.2.5

Safe to downgrade to: a release before 24.2.0

1. Check installed version

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

2. UPGRADE to 24.2.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libreoffice

Note

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

3. If no update is available yet, DOWNGRADE to a release before 24.2.0 (Debian / Ubuntu)

apt-cache madison libreoffice sudo apt install libreoffice=<VERSION_BEFORE_24.2.0> sudo apt-mark hold libreoffice

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libreoffice sudo dnf downgrade libreoffice-<VERSION_BEFORE_24.2.0> sudo dnf versionlock add libreoffice

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-2024-7788?

libreoffice: upgrade to 24.2.5. Exact commands for each OS are on this page.

Is CVE-2024-7788 being exploited?

CVE-2024-7788 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-2024-7788 affect?

CVE-2024-7788 affects libreoffice. Severity is high (CVSS 7.8). Improper Digital Signature Invalidation vulnerability in Zip Repair Mode of The Document Foundation LibreOffice allows Signature forgery vulnerability in LibreOfficeThis issue affects LibreOffice: from 24.2 before < 24.2.5.

How urgent is CVE-2024-7788?

Priority 30/100. High severity

Software pages

LibreOffice vulnerabilities

Related CVEs

CVE-2025-14714 MEDIUM 6.5 UPGRADE An Authentication Bypass vulnerability existed where the application bundled an interpreter (Python) that inhe
CVE-2026-4430 HIGH 7.8 UPGRADE Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mism
CVE-2025-2866 MEDIUM 5.5 UPGRADE Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by
CVE-2025-1080 HIGH 7.8 UPGRADE MITIGATE LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint server
CVE-2025-0514 HIGH 7.8 UPGRADE Improper Input Validation vulnerability in The Document Foundation LibreOffice allows Windows Executable hyper

References

← Back to latest CVEs