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NVD / CVE Program· CNA Document Fdn.

CVE-2022-26306: Execution of Untrusted Macros Due to Improper Certificate Validation

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.1% (FIRST EPSS); higher than 66.3% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: autocorr-af (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma; autocorr-bg (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma; autocorr-ca (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to autocorr-af (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma; autocorr-bg (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma; autocorr-ca (AlmaLinux:8) 1:6.4.7.2-12.el8_7.alma or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. The stored passwords are encrypted with a single master key provided by the user. A flaw in LibreOffice existed where the required initialization vector for encryption was always the same which weakens the security of the encryption making them vulnerable if an attacker has access to the user's configuration data. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Jul 25, 2022
Updated
Jun 17, 2026
EPSS
1.1% · 66th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-26306

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
libreofficelibreoffice
debiandebian linux

Check your site's encryption

This vulnerability is about certificate validation or weak cryptography. The free SSL checker tests your certificate, enabled TLS versions and weak ciphers.

Run the SSL check

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • libreoffice libreoffice7.2.0 and later · before 7.2.7
  • libreoffice libreoffice7.3.0 and later · before 7.3.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Document Fdn.). Independent of NVD's CPE analysis and usually ahead of it.

  • The Document Foundation LibreOffice

    • 7.2 and later · before 7.2.7affected
    • 7.3 and later · before 7.3.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8autocorr-afbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-bgbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-cabefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-csbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-dabefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-debefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-enbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-esbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-fabefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-fibefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-frbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-gabefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-hrbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-hubefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-isbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-itbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-jabefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-kobefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-lbbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-ltbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-mnbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-nlbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-plbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma
AlmaLinux:8autocorr-ptbefore 1:6.4.7.2-12.el8_7.alma1:6.4.7.2-12.el8_7.alma

+96

Same product

libreoffice: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-9851LibreLogo global-event script execution
    62This week
  • CVE-2018-16858It was found that libreoffice before versions 6.0.7 and 6.1.3 was vulnerable to a directory traversal attack which could be used to execute
    60This week
  • CVE-2018-10583An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache OpenOffice Writer 4.1.5 automatically process and initiate
    60This week

Published before and after this one in the same product

  • ← EarlierCVE-2021-25636Feb 24, 2022 · Incorrect trust validation of signature with ambiguous KeyInfo children
    30Monitor
  • ← EarlierCVE-2022-26305Jul 25, 2022 · Execution of Untrusted Macros Due to Improper Certificate Validation
    30Monitor
  • Later →CVE-2022-26307Jul 25, 2022 · LibreOffice supports the storage of passwords for web connections in the user’s configuration database.
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:autocorr-af1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-bg1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-ca1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-cs1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-da1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-de1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-en1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-es1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-fa1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-fi1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-fr1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
almalinux:autocorr-ga1:6.4.7.2-12.el8_7.alma · AlmaLinux:8Package registry (OSV)
debian:libreoffice1:7.3.3~rc1-2 · Debian:12Package registry (OSV)
red hat:autocorr-af1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-bg1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-ca1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-cs1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-da1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-de1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-en1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-es1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-fa1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-fi1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-fr1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:autocorr-ga1:6.4.7.2-12.el8_7 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:libreoffice1:6.4.7.2-12.el8_7 · Rocky Linux:8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-326 · Inadequate Encryption Strength

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records