CVE-2022-45188Public exploitNetwork attack vector

Root code execution via unchecked .appl length

Published Nov 12, 2022 · Updated Feb 13, 2026

Heap-based buffer overflow in Netatalk 1.5.0 through 2.2.8 and 3.0.0 through 3.1.14 allows attackers to execute code via crafted .appl data. afp_getappl reads a 16-bit length and copies that many bytes into the 4,097-byte oldtmp buffer without checking that the data fits. On FreeBSD with vol dbnest enabled, remote attackers can overwrite fce_notify_script and run a shell command as root; other systems expose local privilege escalation.

CVSS severity7.8
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Netatalk 1.5.0 through 2.2.8 and 3.0.0 through 3.1.14 allows attackers to execute code via crafted .appl data. afp_getappl reads a 16-bit length and copies that many bytes into the 4,097-byte oldtmp buffer without checking that the data fits. On FreeBSD with vol dbnest enabled, remote attackers can overwrite fce_notify_script and run a shell command as root; other systems expose local privilege escalation.

The record

CVE
CVE-2022-45188
Published
Nov 12, 2022
Updated
Feb 13, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, CWE-122, T1068, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8Netatalk ProjectCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1068Exploitation for Privilege Escalation
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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