HOMEVULNERABILITIESCVE-2020-7454
CRITICAL

CVE-2020-7454

CWE-20Published: May 13, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.

NVD Source

Technical Analysis

CVE-2020-7454 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

freebsd1 product(s)
freebsd
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.asc
ADVISORYhttps://security.netapp.com/advisory/ntap-20200518-0005/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-20-659/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-20-660/
ADVISORYhttps://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.asc
ADVISORYhttps://security.netapp.com/advisory/ntap-20200518-0005/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-20-659/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-20-660/

All References (8)

→
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.ascVendor Advisory
→
https://security.netapp.com/advisory/ntap-20200518-0005/Third Party Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-20-659/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-20-660/Third Party Advisory · VDB Entry
→
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.ascVendor Advisory
→
https://security.netapp.com/advisory/ntap-20200518-0005/Third Party Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-20-659/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-20-660/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2020-7454
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedMay 13, 2020

Related CVEs (CWE-20)

CVE-2007-0213
10.0
CVE-2008-4428
10.0
CVE-2025-34060
10.0
CVE-2008-5220
10.0
CVE-2025-23202
10.0
CVE-2008-0457
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-7454 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2020-7454·NVD