CVE-2023-34798: An arbitrary file upload vulnerability in eoffice before v9.5 allows attackers to execute arbitrary code via u

Q: How do I fix CVE-2023-34798?

e-office: upgrade to 9.5. Exact commands for each OS are on this page.

Q: Is CVE-2023-34798 being exploited?

CVE-2023-34798 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-2023-34798 affect?

CVE-2023-34798 affects e-office. Severity is critical (CVSS 9.8). An arbitrary file upload vulnerability in eoffice before v9.5 allows attackers to execute arbitrary code via uploading a crafted file.

Q: How urgent is CVE-2023-34798?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-34798 is a critical-severity flaw (CVSS 9.8) affecting e-office. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An arbitrary file upload vulnerability in eoffice before v9.5 allows attackers to execute arbitrary code via uploading a crafted file.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-07-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: weaver

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

Am I affected?

Timeline

2023-07-25 20:15 UTCPublished CVE record published
2026-06-17 06:04 UTCUpdated Record last modified

weaver e-office UPGRADE

Affected: < 9.5

Fixed in: 9.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy e-office || rpm -q e-office || e-office --version

2. UPGRADE to 9.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade e-office

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade e-office

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-2023-34798?

e-office: upgrade to 9.5. Exact commands for each OS are on this page.

Is CVE-2023-34798 being exploited?

CVE-2023-34798 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-2023-34798 affect?

CVE-2023-34798 affects e-office. Severity is critical (CVSS 9.8). An arbitrary file upload vulnerability in eoffice before v9.5 allows attackers to execute arbitrary code via uploading a crafted file.

How urgent is CVE-2023-34798?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-3227 MEDIUM 4.7 UPGRADE A vulnerability was found in Panwei eoffice OA up to 9.5
CVE-2023-2766 MEDIUM 5.3 DOWNGRADE A vulnerability was found in Weaver OA 9.5 and classified as problematic
CVE-2023-2765 MEDIUM 4.3 DOWNGRADE A vulnerability has been found in Weaver OA up to 9.5 and classified as problematic
CVE-2023-2648 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Weaver E-Office 9.5
CVE-2023-2647 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Weaver E-Office 9.5 and classified as critical

References

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