CVE-2021-46853
MEDIUM
5.9
CVSS Score
Published: November 3, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:15 AM UTC
1 product affected across 1 vendorAlpine
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.9
Exploit prediction
EPSS 0.9%
SSVC
No known exploit
Description
Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.25
Affected range stops below 2.25, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202301-07SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.9MEDIUMCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-367
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card