A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.
Conclusion & alert: CVE-2023-42464 is rated Moderate Risk (60.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.79%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 6.52% | 1.79% | -4.73% |
| 2 | 2026-04-30 | 7.70% | 6.52% | -1.18% |
| 3 | 2026-03-27 | — | 7.70% | — |
Full EPSS history (32 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-42464: 1 source package rows (netatalk); 12 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 6. | https://security.alpinelinux.org/vuln/CVE-2023-42464 |
debian
|
not yet assigned | CVE-2023-42464 not yet assigned priority: Debian including 1 source packages (netatalk), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2023-42464 |
suse
|
high | CVE-2023-42464 severity important: SUSE including 3 source package names (libatalk12-3.1.0-3.19.1, netatalk-3.1.0-3.19.1, netatalk-devel-3.1.0-3.19.1), 5 product×package rows across 2 product lines (SUSE Linux Enterprise Software Development Kit 12 SP5, SUSE Linux Enterprise Workstation Extension 12 SP5): Fixed 5. | https://www.suse.com/security/cve/CVE-2023-42464/ |
ubuntu
|
medium | CVE-2023-42464 medium priority: Ubuntu including 1 source packages (netatalk), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 7, released 4, ignored 1. | https://ubuntu.com/security/CVE-2023-42464 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netatalk | netatalk | >= 3.1, < 3.1.17 | cpe:2.3:a:netatalk:netatalk:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/Netatalk/netatalk/issues/486 | Issue Tracking Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2023/09/msg00031.html | Mailing List Third Party Advisory |
| https://netatalk.io/security/CVE-2023-42464 | |
| https://netatalk.sourceforge.io/ | Product |
| https://netatalk.sourceforge.io/3.1/htmldocs/afpd.8.html | Product |
| https://netatalk.sourceforge.io/CVE-2023-42464.php | Patch Vendor Advisory |
| https://www.debian.org/security/2023/dsa-5503 | Third Party Advisory |