CVE-2022-26305
No exploitation reported by the sources we read.
- Published2022-07-25
- Fixed in7.3.2 · 7.2.7
- WeaknessCWE-295
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.
Timeline
dates in UTC- 2022-07-2515:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26305?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26305?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 7.3 | ≥ 7.3.0, < 7.3.2 | 7.3.2 | NVD |
| 7.2 | ≥ 7.2.0, < 7.2.7 | 7.2.7 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- libreoffice-sdkAlmaLinux:9all versions · fixed in 1:7.1.8.1-8.el9_1.almaand 177 other packages
- libreoffice-sdkAlmaLinux:8all versions · fixed in 1:6.4.7.2-12.el8_7.almaand 170 other packages
Fix
- Update Libreoffice to 7.3.2 · 7.2.7
Advisories and patches
- www.libreoffice.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.5read 2026-10-23
- CNAweakness (CWE)CWE-295read 2026-10-23
- NVDweakness (CWE)CWE-295read 2026-10-23
- FIRST EPSSEPSS score1.2 %2026-10-23
- OSVaffected packages—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2022-07-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2022-26305?
Is CVE-2022-26305 actively exploited?
What is the CVSS score for CVE-2022-26305?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.