Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-25631

28
FAUCET Score

CVE-2021-25631 is a critical vulnerability affecting LibreOffice versions prior to 7.1.2 and 7.0.5, allowing attackers to bypass the denylist mechanism. By manipulating links, an attacker can trick LibreOffice into launching executable files via ShellExecute, leading to remote code execution. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk with low attack complexity and high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0, < 7.0.5CPE match
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
>= 7.1, < 7.1.2CPE match
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.5CPE matchmatch criteria
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*
>= 7.1.0, < 7.1.2CPE matchmatch criteria
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.17%
Probability of exploitation in next 30 days
EPSS Percentile
89.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0417 is in the 90th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

asteriskpatch availablevia llm_extracted
Fixed in: 7.0.5/7.1.2
View patch
check_pointpatch availablevia llm_extracted
Fixed in: 7.0.5/7.1.2
View patch

Vendor Advisories (2)

asteriskllm-asterisk-125348290eb6336a

Denylist of executable filename extensions possible to bypass under windows

check_pointllm-check_point-8f81710a61bf0f0a

Denylist of executable filename extensions possible to bypass under windows

References

positive.security / blog/url-open-rce
ExploitThird Party Advisory
libreoffice.org / about-us/security/advisories/cve-2021-25631
Vendor Advisory