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» GHSA-8f3j-jffj-vg2m
Description
A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.
Basic information
Type
unreviewed
Severity
critical Advisory on GitHub
Open advisory ↗ Repository advisory
—
Source code
Not specified Published (advisory)
2026-05-21 09:32:08 UTC
Updated
2026-05-21 09:32:16 UTC
NVD published
2026-05-21 08:16:20 UTC
EPSS Score
Score
Percentile
0.14%
33.24%
CVSS Scores
Base score
Version
Severity
Vector
9.9
3.1
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CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-122
Heap-based Buffer Overflow
cvelogic
Threat Intelligence