CVE-2020-7462
MEDIUM
5.5
CVSS Score
Published: March 26, 2021 at 08:48 PM UTC
Updated: June 17, 2026 at 03:24 AM UTC
1 product affected across 1 vendorFreeBSD
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
Description
In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:24.ipv6.ascCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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