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CVE-2020-7450

25
FAUCET Score

CVE-2020-7450 is a critical heap buffer overflow vulnerability in libfetch's URL handling within FreeBSD versions 12.1-STABLE, 12.1-RELEASE, 12.0-RELEASE, 11.3-STABLE, and 11.3-RELEASE. This flaw, triggered by URLs containing username/password components, allows for program misbehavior or arbitrary code execution. With a CVSS score of 9.8 (CRITICAL), it presents a high-impact, network-exploitable threat requiring no user interaction. While no public exploits, Metasploit modules, or significant community discussion have been identified, its high FAUCET Risk Score of 80/100 indicates a significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.50%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0250 is in the 73rd percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

junipervendor investigatingvia vendor_rss
View patch

Vendor Advisories (1)

juniperjuniper:ka0Dp000000VpCEIA0LOW

2026-07 Security Bulletin: Junos OS Evolved: URL handling vulnerability in libfetch results in heap buffer overflow (CVE-2020-7450)

Jul 8, 2026

References

security.freebsd.org / advisories/FreeBSD-SA-20:01.libfetch.asc
PatchVendor Advisory