CVE-2024-10396Network attack vector

Authenticated denial of service via malformed ACL parsing

Published Nov 14, 2024 · Updated Dec 23, 2025

OpenAFS 1.6.24 and earlier, 1.8.0 through 1.8.12.2, and 1.9.0 through 1.9.1 allows remote authenticated users to crash fileservers. StoreACL and FetchACL treat opaque ACL buffers as C strings without ensuring NUL termination or required newlines, causing out-of-bounds reads, allocation leaks, or invalid-pointer dereferences. ACL-changing rights normally gate the server path; an enabled audit log permits unauthenticated crashes, while malicious FetchACL replies primarily crash Unix client utilities.

CVSS severity6.5

Medium

EPSS probability0.56%

Next 30 days · Sep 16, 2026

Known exploitationUnconfirmed

Based on sourced intelligence

Hinoki checkNot available

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Summary

What happened

The record

CVE: CVE-2024-10396
Published: Nov 14, 2024
Updated: Dec 23, 2025

Vendor: OpenAFS Foundation
Product: OpenAFS
Classifications: CWE-772, T1499.004

Attack vector: network
Privileges: authenticated

Timeline

How it unfolded

Nov 14, 2024CVE publishedPublication date reported by the CVE source.
Dec 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

Affected versionversion=1.0 <1.6.24
Affected versionversion=1.8.0 <1.8.12.2
Affected versionversion=1.9.0 <1.9.1

What conditions does exploitation require?

Attack vectornetwork

Required privilegesauthenticated

What is affected?

OpenAFS Foundation · OpenAFSversion=1.0 <1.6.24; version=1.8.0 <1.8.12.2; version=1.9.0 <1.9.1

Published CVSS scores

6.0OpenAFS FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

2.3OpenAFS FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

6.5Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.3OpenAFS FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

7.1OpenAFS FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

Privilegesauthenticated

Known exploitationUnconfirmed

Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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