How severe is CVE-2024-5261?

CVE-2024-5261 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-5261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5261?

CVE-2024-5261 affects Libreoffice. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-5261?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-5261 have an EU (EUVD) identifier?

Yes. CVE-2024-5261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46499.

When was CVE-2024-5261 published?

CVE-2024-5261 was published on 2024-06-25 and last updated on 2026-06-17.

CVE-2024-5261

CVE-2024-5261 is a critical-severity vulnerability in Libreoffice with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46499
Weakness: CWE-295
Affected product: Libreoffice
Published: 2024-06-25
Last modified: 2026-06-17

Description

Improper Certificate Validation vulnerability in LibreOffice "LibreOfficeKit" mode disables TLS certification verification LibreOfficeKit can be used for accessing LibreOffice functionality through C/C++. Typically this is used by third party components to reuse LibreOffice as a library to convert, view or otherwise interact with documents. LibreOffice internally makes use of "curl" to fetch remote resources such as images hosted on webservers. In affected versions of LibreOffice, when used in LibreOfficeKit mode only, then curl's TLS certification verification was disabled (CURLOPT_SSL_VERIFYPEER of false) In the fixed versions curl operates in LibreOfficeKit mode the same as in standard mode with CURLOPT_SSL_VERIFYPEER of true. This issue affects LibreOffice before version 24.2.4.

Frequently asked questions

What is CVE-2024-5261?: Improper Certificate Validation vulnerability in LibreOffice "LibreOfficeKit" mode disables TLS certification verification LibreOfficeKit can be used for accessing LibreOffice functionality through C/C++. Typically this is used by third party components to reuse LibreOffice as a library to convert, view or otherwise interact with documents. LibreOffice internally makes use of "curl" to fetch remote resources such as images hosted on webservers. In affected versions of LibreOffice, when used in LibreOfficeKit mode only, then curl's TLS certification verification was disabled (CURLOPT_SSL_VERIFYPEER of false) In the fixed versions curl operates in LibreOfficeKit mode the same as in standard mode with CURLOPT_SSL_VERIFYPEER of true. This issue affects LibreOffice before version 24.2.4.
How severe is CVE-2024-5261?: CVE-2024-5261 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-5261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5261?: CVE-2024-5261 affects Libreoffice. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-5261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-5261 have an EU (EUVD) identifier?: Yes. CVE-2024-5261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46499.
When was CVE-2024-5261 published?: CVE-2024-5261 was published on 2024-06-25 and last updated on 2026-06-17.

References

https://www.libreoffice.org/about-us/security/advisories/cve-2024-5261

Affected products (1)

cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*

More vulnerabilities in Libreoffice

CVE-2014-0247 — Critical (CVSS 10.0): LibreOffice 4.2.4 executes unspecified VBA macros automatically, which has unspecified impact and attack vectors,…
CVE-2019-9855 — Critical (CVSS 9.8): LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute…
CVE-2019-9851 — Critical (CVSS 9.8): LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute…
CVE-2019-9850 — Critical (CVSS 9.8): LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute…
CVE-2019-9848 — Critical (CVSS 9.8): LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document…
CVE-2018-14939 — Critical (CVSS 9.8): The get_app_path function in desktop/unx/source/start.c in LibreOffice through 6.0.5 mishandles the realpath function…

All CVEs affecting Libreoffice →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →